What we will do today State what is meant by electric current. State the difference between conductors and insulators. State how we measure electric current.

Slides:

Advertisements

Similar presentations

Electricity: Circuits Use your slates to answer the following questions.

Advertisements

The amount of charge passing a point in a given time interval is.

What is Electricity? Electricity is the flow of moving electrons. When the electrons flow it is called an electrical current.

Static Electricity 1. Matter is made up of particles that have mass & volume. 2. Particles of matter also have a property called an electric charge. 3.

Controlling the Flow of Electrical Current Section 2.1-Day #1.

CHAPTER 1 : INTRODUCTION TO ELECTRICAL CIRCUITS

Electric Current and Ohm’s Law Chapter Key Concepts: – What are two types of current? – What are some examples of conductors and insulators? – What.

Why do I need a battery? Chapter 7 Section 2.

A basic property of the tiny particles that make up matter; it can be positive or negative: Some particles of matter have an electric charge. Electric.

Electric Current. Electric current Electric current is the rate of electron flow past a specific point in the circuit (how fast electrons pass through.

Current Electricity.

Electricity. whether two charges attract or repel depends on whether they have the same or opposite sign unit of measurement for charge is the coulomb.

CHAPTER 7 ELECTRICITY BINGO. A circuit in which current has more than one path is called a _________________ circuit.

Chapter 1: Introduction and DC Circuit AZRALMUKMIN BIN AZMI.

Regents Physics Circuits Unit Part I Resistivity and Ohm’s Law.

Measurements in Electric Circuits Gr. 9 Electricity Unit.

Electricity as Energy. In this activity you will: Learn about electricity as a form of energy.

 All matter is made of tiny particles called atoms.  Atoms are made of 3 different types of particles: 1. Protons 2. Neutrons 3. Electrons.

 Electricity is caused by the flow (or net movement) of Electrons  Electric Current – the rate that positive charges flow in a circuit › Actually a.

Intro to Electricity. What IS Electricity? A form of energy resulting from the existence of charged particles.

ELECTRICITY AND MAGNETISM SERIES VS PARALLEL CIRCUITS.

Presented by :- Lipika Biswas, TGT (Science) K.V. Ballygunge.

Electricity. Conductors and Insulators Conductors are materials that allow electricity to flow easily Examples: metal, water, air and some chemicals Insulators.

Electrical Symbols SNC 1D.

Electricity: The Mouse and Cheese Analogy

Review of Fourth Grade STARTING WITH ELECTRICITY.

Electric Current & Electric Circuits. The movement of electrically charged particles is an electric current. The SI unit for electric current is ampere.

Magnetism & Electromagnetism

Electricity Basics of electricity. Electricity Atoms – The smallest unit of each element Electrons – negatively charged particles in atoms Ions – charged.

Electric Current and Ohm’s Law. Electric Current Electric current is the continuous flow of electric charge Two types of current are direct and alternating.

How do electric charges flow in a circuit? Pgs Chapter 5: Electricity Lesson 1:“ What Lights the Night?”

Electric Current Chapter 19-1: Pages Physics.

Electric Charge IPC NOTES. ELECTRIC CHARGE static electricity – the net accumulation of electric charge or electrons on an object.

Rate of flow of electrical charge is called current P2 4.2 Charge on the move Metals conduct electricity because they contain conduction or de-localised.

Simple Circuits & the Transfer of Electrical Energy

2c) Energy and Potential Difference in Circuits Part 1 Current and Charge.

4.1 Current and charge Electrical conduction Electrical conduction: * is the movement of charge carriers, eg electrons * the rate of flow of charge is.

Jag Mark What kind of charging does the PowerMat utilize?

8.2 ELECTRIC CURRENT BC Science 9: p Electric Circuit An electric circuit is a complete pathway that allows electrons to flow. Electrons flow.

IP What is electric current? © Oxford University Press 2011 What is electric current?

Electricity as Energy Write On Grade 5. Learner Expectations: Content Standard: 14.0 Energy The student will investigate energy and its uses. Learning.

a path along which electrons flow must have no breaks in the path to work 2 types: –closed (no breaks) –open (break, causes the device to shut off - switch)

By Pearce, Adam, Nathan and Conor Materials We needed wire: We needed crocodile clips We needed batteries And last we needed a bulb.

PHYSICS – Electrical quantities (1)

Electricity 7-1, 7-2 Electric Charge and Electric Current.

Static Electricity, Electric Forces, Electric Fields.

Electrostatics (Static Electricity) was a single discharge. Current is a steady flow of electric charge.

Electric Current. What is electrical current? When electrical charges move, they are known as electric current Electrical current is the flow of electrons.

Chapter 3.3 Notes Rate in Electrical Systems. Speed is the rate of change of position. Acceleration is the rate of change of velocity. Volume Flow Rate.

Unit 8 - Electricity. Electricity What is electricity? The flow of electric charge (either protons or electrons) This flow is called current Electric.

Electric Current.

Every home has an electricity meter. Do you know where yours is?

Electrical Circuits.

Electric Circuit Components are connected together with electrical wire to form a closed loop. Components are represented by symbols 1.

Electricity - Current.

Electricity L1: Circuit Diagrams

Current and Charge Chapter 21.

Controlling the flow of Electricity

Electricity Electric Current.

Conductors and Insulators

STARTING WITH ELECTRICITY

Physics Unit - Part 2 Electric Current.

20.2 Electric Current and Ohm’s Law

Electricity Current Electricity.

Electric Current.

Ohm’s Law & Circuits Chapter 7.2 & 7.3.

Insulators & Conductors

PHYSICS – Electrical quantities (1). LEARNING OBJECTIVES Core State that there are positive and negative charges State that unlike charges attract and.

Electric Current and Energy

Make a Complete Circuit

Presentation transcript:

What we will do today State what is meant by electric current. State the difference between conductors and insulators. State how we measure electric current. State how we can measure electric charge.

What is Electric Current? In a conductor, electrons are allowed to move freely. An electric current is a flow of electric charges, usually electrons. Electrons are very small negatively charged particles. In a closed circuit electric current moves from the negative terminal to the positive terminal of a battery or power source.

Conductors and Insulators Conductors – allow electric current to flow through. E.g metals and carbon Insulators – do not allow electric current to flow through. E.g. non-metals like air, plastic & wood Super Electric Human (India) Who can Conduct High Voltage Electricity Through his Body.FLV - YouTubeSuper Electric Human (India) Who can Conduct High Voltage Electricity Through his Body.FLV - YouTube

Measuring Electric Current An ammeter is an instrument that measures electric current. Electric current has the unit amperes (A).

Measuring Electric Charge Electric ‘current’ is a flow of electric ‘charge’ around a circuit. We find that the relationship between the two is given as: Charge = Current x time Q = I t Charge is measured in Coulombs (C).

Example 1 I = 5 A t = 30 s Q = ?

Example 2 I = ? t = 5 mins Q = 150 C

Example 3 I = 100 mA t = ? Q = 5 C

2005, Qu: 9