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2. Using Boundless Presentations The Appendix The appendix is for you to use to add depth and breadth to your lectures. You can simply drag and drop slides from the appendix into the main presentation to make for a richer lecture experience. Free to edit, share, and copy Feel free to edit, share, and make as many copies of the Boundless presentations as you like. We encourage you to take these presentations and make them your own. Free to share, print, make copies and changes. Get yours at www.boundless.com Boundless Teaching Platform Boundless empowers educators to engage their students with affordable, customizable textbooks and intuitive teaching tools. The free Boundless Teaching Platform gives educators the ability to customize textbooks in more than 20 subjects that align to hundreds of popular titles. Get started by using high quality Boundless books, or make switching to our platform easier by building from Boundless content pre-organized to match the assigned textbook. This platform gives educators the tools they need to assign readings and assessments, monitor student activity, and lead their classes with pre-made teaching resources. Get started now at: If you have any questions or problems please email: educators@boundless.com http://boundless.com/teaching-platform

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4. The Battery Current and Voltage Measurements in Circuits A Microscopic View: Drift Speed Electric Current Electric Current and Resistance and Circuits an... > Electric Current Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics?campaign_content=book_5818_section_167&campaign_term=Physics&utm_campaign=powerpoint&utm_medium= direct&utm_source=boundless

5. A battery stores electrical potential from the chemical reaction. When it is connected to a circuit, that electric potential is converted to kinetic energy as the electrons travel through the circuit. The voltage or potential difference between two points is defined to be the change in potential energy of a charge q moved from point 1 to point 2, divided by the charge. The voltage of a battery is synonymous with its electromotive force, or emf. This force is responsible for the flow of charge through the circuit, known as the electric current. The Battery Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics/textbooks/alternative-to-physics-9th-john-d-cutnell-kenneth-w-johnson-1118129172-9781118129173/electric-current- and-resistance-and-circuits-and-direct-currents-20/electric-current-167/the-battery-606- 4335?campaign_content=book_5818_section_167&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=direct&utm_source=bou ndless Symbol of a Battery in a Circuit Diagram View on Boundless.com Electric Current and Resistance and Circuits an... > Electric Current

6. A simple circuit consists of a voltage source and a resistor. Ohm's law gives the relationship between current I, voltage V, and resistance R in a simple circuit: I = V/R. The SI unit for measuring the rate of flow of electric charge is the ampere, which is equal to a charge flowing through some surface at the rate of one coulomb per second. Current and Voltage Measurements in Circuits Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics/textbooks/alternative-to-physics-9th-john-d-cutnell-kenneth-w-johnson-1118129172-9781118129173/electric-current- and-resistance-and-circuits-and-direct-currents-20/electric-current-167/current-and-voltage-measurements-in-circuits-607- 6073?campaign_content=book_5818_section_167&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=direct&utm_source=bou ndless A Simple Circuit View on Boundless.com Electric Current and Resistance and Circuits an... > Electric Current

7. There is an electric field in conductors that causes electrons to drift in the direction opposite to the field. The drift velocity is the average velocity of these free charges. The expression for the relationship between the current and drift velocity can be obtained by considering the number of free charges in a segment of wire. I = qnAv relates the drift velocity to the current, where I is the current through a wire of cross-sectional area A made of a material with a free charge density n. The carriers of the current each have a charge q and move with a drift velocity of magnitude v. A Microscopic View: Drift Speed Free to share, print, make copies and changes. Get yours at www.boundless.com www.boundless.com/physics/textbooks/alternative-to-physics-9th-john-d-cutnell-kenneth-w-johnson-1118129172-9781118129173/electric-current- and-resistance-and-circuits-and-direct-currents-20/electric-current-167/a-microscopic-view-drift-speed-608- 7220?campaign_content=book_5818_section_167&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=direct&utm_source=bou ndless Electrons Moving Through a Conductor View on Boundless.com Electric Current and Resistance and Circuits an... > Electric Current

8. Free to share, print, make copies and changes. Get yours at www.boundless.com Appendix

9. Key terms ampere A unit of electrical current; the standard base unit in the International System of Units. Abbreviation: amp. Symbol: A. battery A device that produces electricity by a chemical reaction between two substances. current The time rate of flow of electric charge. drift velocity The average velocity of the free charges in a conductor. electrical current the movement of charge through a circuit ohm in the International System of Units, the derived unit of electrical resistance; the electrical resistance of a device across which a potential difference of one volt causes a current of one ampere; symbol: Ω voltage The amount of electrostatic potential between two points in space. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an...

10. Electrons Moving Through a Conductor When charged particles are forced into this volume of a conductor, an equal number are quickly forced to leave. The repulsion between like charges makes it difficult to increase the number of charges in a volume. Thus, as one charge enters, another leaves almost immediately, carrying the signal rapidly forward. Free to share, print, make copies and changes. Get yours at www.boundless.com Connexions. "Current." CC BY 3.0 http://cnx.org/content/m42341/latest/?collection=col11406/1.7 View on Boundless.comCC BY 3.0http://cnx.org/content/m42341/latest/?collection=col11406/1.7View on Boundless.com Electric Current and Resistance and Circuits an...

11. Symbol of a Battery in a Circuit Diagram This is the symbol for a battery in a circuit diagram. It originated as a schematic drawing of the earliest type of battery, a voltaic pile. Notice the positive cathode and negative anode. This orientation is important when drawing circuit diagrams to depict the correct flow of electrons. Free to share, print, make copies and changes. Get yours at www.boundless.com Wikipedia. "Battery (electricity)." CC BY http://en.wikipedia.org/wiki/Battery_(electricity) View on Boundless.comCC BYhttp://en.wikipedia.org/wiki/Battery_(electricity)View on Boundless.com Electric Current and Resistance and Circuits an...

12. What is Voltage? This video helps with a conceptual understanding of voltage. Free to share, print, make copies and changes. Get yours at www.boundless.com View on Boundless.com Electric Current and Resistance and Circuits an...

13. Drift Speed Free electrons moving in a conductor make many collisions with other electrons and atoms. The path of one electron is shown. The average velocity of the free charges is called the drift velocity and is in the direction opposite to the electric field for electrons. The collisions normally transfer energy to the conductor, requiring a constant supply of energy to maintain a steady current. Free to share, print, make copies and changes. Get yours at www.boundless.com Connexions. "Current." CC BY 3.0 http://cnx.org/content/m42341/latest/?collection=col11406/1.7 View on Boundless.comCC BY 3.0http://cnx.org/content/m42341/latest/?collection=col11406/1.7View on Boundless.com Electric Current and Resistance and Circuits an...

14. Ideal and Real Batteries A brief introduction to ideal and real batteries for students studying circuits. Free to share, print, make copies and changes. Get yours at www.boundless.com View on Boundless.com Electric Current and Resistance and Circuits an...

15. A Simple Circuit A simple electric circuit made up of a voltage source and a resistor Free to share, print, make copies and changes. Get yours at www.boundless.com Wikipedia. "Electrical circuit." CC BY http://en.wikipedia.org/wiki/Electrical_circuit View on Boundless.comCC BYhttp://en.wikipedia.org/wiki/Electrical_circuitView on Boundless.com Electric Current and Resistance and Circuits an...

16. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... A battery is a device that A) converts electrical energy directly to chemical energy B) transfers energy by inductive coupling between winding circuits C) converts chemical energy directly to electrical energy D) implements electrical resistance as a circuit element

17. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... A battery is a device that A) converts electrical energy directly to chemical energy B) transfers energy by inductive coupling between winding circuits C) converts chemical energy directly to electrical energy D) implements electrical resistance as a circuit element

18. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... Battery consist of a number of voltaic cells A) connected in parallel by a conductive electrolyte containing anions and cations B) voltaic cells connected in series by a conductive electrolyte containing anions and cations C) submerged in a non-electrolytic solution D) isolated by glass or Teflon insulators

19. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... Battery consist of a number of voltaic cells A) connected in parallel by a conductive electrolyte containing anions and cations B) voltaic cells connected in series by a conductive electrolyte containing anions and cations C) submerged in a non-electrolytic solution D) isolated by glass or Teflon insulators

20. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... The electrical current is A) directly proportional to the voltage applied and inversely related to the resistance in a circuit B) directly proportional both to the voltage applied and the resistance in a circuit C) inversely related both to the voltage applied and the resistance in a circuit D) directly proportional to the resistance in a circuit and inversely related to the voltage applied

21. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... The electrical current is A) directly proportional to the voltage applied and inversely related to the resistance in a circuit B) directly proportional both to the voltage applied and the resistance in a circuit C) inversely related both to the voltage applied and the resistance in a circuit D) directly proportional to the resistance in a circuit and inversely related to the voltage applied

22. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... The SI unit for measuring an electric current is the A) Ampere B) Volt C) Ohm D) Coulomb

23. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... The SI unit for measuring an electric current is the A) Ampere B) Volt C) Ohm D) Coulomb

24. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... An electric field in conductors causes A) electrons to drift in the direction perpendicular to the field B) electrons to drift in the direction coincident to the field C) protons to drift in the direction perpendicular to the field D) electrons to drift in the direction opposite to the field

25. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... An electric field in conductors causes A) electrons to drift in the direction perpendicular to the field B) electrons to drift in the direction coincident to the field C) protons to drift in the direction perpendicular to the field D) electrons to drift in the direction opposite to the field

26. Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an... The drift velocity is the A) average velocity of free charges in conductors B) maximum velocity of free charges in conductors C) minimum velocity of free charges in conductors D) median velocity of free charges in conductors

27. Free to share, print, make copies and changes. Get yours at www.boundless.comwww.boundless.com Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/CC BY-SA 3.0http://www.boundless.com/ Electric Current and Resistance and Circuits an... The drift velocity is the A) average velocity of free charges in conductors B) maximum velocity of free charges in conductors C) minimum velocity of free charges in conductors D) median velocity of free charges in conductors

28. Attribution Wikipedia. "Battery (electricity)." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Battery_(electricity)CC BY-SA 3.0http://en.wikipedia.org/wiki/Battery_(electricity) Connexions. "Electric Potential Energy: Potential Difference." CC BY 3.0 http://cnx.org/content/m42324/latest/?collection=col11406/1.7CC BY 3.0 http://cnx.org/content/m42324/latest/?collection=col11406/1.7 Wikipedia. "Battery (electricity)." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Battery_(electricity)CC BY-SA 3.0http://en.wikipedia.org/wiki/Battery_(electricity) Wiktionary. "current." CC BY-SA 3.0 http://en.wiktionary.org/wiki/currentCC BY-SA 3.0http://en.wiktionary.org/wiki/current Wiktionary. "voltage." CC BY-SA 3.0 http://en.wiktionary.org/wiki/voltageCC BY-SA 3.0http://en.wiktionary.org/wiki/voltage Wiktionary. "battery." CC BY-SA 3.0 http://en.wiktionary.org/wiki/batteryCC BY-SA 3.0http://en.wiktionary.org/wiki/battery Wikipedia. "Voltage." CC BY-SA 3.0 http://en.wikipedia.org/wiki/VoltageCC BY-SA 3.0http://en.wikipedia.org/wiki/Voltage Wikipedia. "Electric current." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Electric_current#Current_density_and_Ohm.27s_lawCC BY-SA 3.0http://en.wikipedia.org/wiki/Electric_current#Current_density_and_Ohm.27s_law Wikipedia. "Electric current." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Electric_currentCC BY-SA 3.0http://en.wikipedia.org/wiki/Electric_current Connexions. "Current." CC BY 3.0 http://cnx.org/content/m42341/latest/?collection=col11406/1.7CC BY 3.0http://cnx.org/content/m42341/latest/?collection=col11406/1.7 Wiktionary. "ohm." CC BY-SA 3.0 http://en.wiktionary.org/wiki/ohmCC BY-SA 3.0http://en.wiktionary.org/wiki/ohm Wiktionary. "ampere." CC BY-SA 3.0 http://en.wiktionary.org/wiki/ampereCC BY-SA 3.0http://en.wiktionary.org/wiki/ampere Wiktionary. "electrical current." CC BY-SA 3.0 http://en.wiktionary.org/wiki/electrical+currentCC BY-SA 3.0http://en.wiktionary.org/wiki/electrical+current Light and Matter. CC BY http://lightandmatter.com/lml.pdfCC BYhttp://lightandmatter.com/lml.pdf Connexions. "Current." CC BY 3.0 http://cnx.org/content/m42341/latest/?collection=col11406/1.7CC BY 3.0http://cnx.org/content/m42341/latest/?collection=col11406/1.7 Wikipedia. "Electric current." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Electric_current#Drift_speedCC BY-SA 3.0http://en.wikipedia.org/wiki/Electric_current#Drift_speed Boundless Learning. "Boundless." CC BY-SA 3.0 http://www.boundless.com//physics/definition/drift-velocityCC BY-SA 3.0http://www.boundless.com//physics/definition/drift-velocity Free to share, print, make copies and changes. Get yours at www.boundless.com Electric Current and Resistance and Circuits an...