Electricity and the devices that carry it.. POWER  Electricity and the devices that carry it.  Rules of Lighting Design  Law of Reflection  Law of.

Slides:

Advertisements

Similar presentations

PSAA Curriculum Unit Physical Science Systems. Problem Area Energy and Power Systems.

Advertisements

Voltage and resistance in a circuit

Unit 7 Parallel Circuits

Electricity. Charges Atoms contain particles called protons, neutrons, and electrons. Protons (+) Electrons (-) Neutrons (0)

Electricity and Electronics Technology Education Dept. Bellwood-Antis Middle School Mr. Mackereth.

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

Electricity Calculating Electric Power When installing new appliances, equipment, tools, or any type of electrical convenience, it is important to know.

Electric Circuits and Power Page 706. Ohm’s Law Resistance is equal to the voltage divided by the current. Resistance = Voltage Current Ohms ( ) = Volts.

Topic 2 Electricity Within a Circuit. Static and Current Electricity: When charged particles build up in an object it is called static electricity. Another.

Basic Electricity Facts and Diagrams. Romex Types Determine your need to determine the type of Romex needed Gage Size of the wire (common = 12 or 14)

 Over 400 deaths occur annually from electric shock  Half of all deaths occur with low voltage outlets  On the job site, one death per day and

Circuits & Electronics

Electrical Review Electricity Resistance Insulator

Electrical Energy - Moving electrons in a path is electricity

P  German physicist Georg Ohm ( ) found relationship between potential difference & current.  He kept potential difference & current.

Electricity Basic Terms #1 John Jones. Ampere – rate of electrical flow (volume of electricity flowing) Sometimes referred to as amps.

EXAMPLE ELECTRICAL DESIGN OF A SMALL OFFICE

Electricity and Magnetism Test Review. Static Electricity Def: Electricity created by a group of electrons staying together in one place. Electrons.

Electrical Potential (Voltage) Answers (Page 303)

Ag. Mechanics Becoming Familiar with Electricity Enterprise: Ag. Mechanics Job: Becoming Familiar with Electricity.

Electrical Current Mr. Fleming.

Electricity. Electrical Potential Every charged particle has the ability to do work. They can exert a push or a pull on each other or another object by.

ELECTRIC CIRCUITS. I. Circuits A flow of electrons is called a current.  Symbol - I  Unit is Amperes or Amps (A)  I = q/t  Current is amount of charge.

4.2.3B Electrical Power What About Watts?. Power Law Moving electrons (current) requires ENERGY How much energy gets used depends on: Strength of push.

Calculating Electricity

Notes taken from Gillette’s Designing with Light.

CHAPTER 2 ELECTRICAL QUANTITIES AND OHM’S LAW. OBJECTIVE. AFTER TODAY, STUDENTS WILL UNDERSTAND THE ELECTRICAL VALUES OF AMPS, VOLTS, OHMS,AND WATTS.

Basic Electricity Facts and Diagrams. Cable Types Determine your need to determine the type of cable (Romex) needed Gage Size of the wire (common = 12.

Electric Current. In this session we will, Review how we measure electric charge Discuss voltage and electric current Look at electric current in batteries.

Electrical Quantities

Ohm’s Law Calculating Current, Voltage, and Resistance.

 No cheating…………… Watts 1440Watts 1200 Watts 1100 Watts 300 Watts.

CHAPTER 7 ELECTRICITY AND MULTIMETERS Suraya Alias.

Ag. Mechanics for Beginning Teachers

Principles of Electricity Background to electricity, circuits, and how to calculate.

Current flow versus Electron flow Conventional current flows this way. Electrons flow this way.

Goals This module is to introduce basic electrical concepts as they apply to power systems. Volts, Amps, Ohms, Watts are discussed. Ohms Law is introduced.

Amperes, Volts and Ohms. We use different units to measure different things: We use different units to measure different things: Time – minutes Time –

Electricity and Circuit. Types of Electricity Static Electricity – no motion of free charges Current Electricity – motion of free charges – Direct Current.

Electricity Calculating Electric Power This lesson is from Virginia Tech and has not been edited by the Georgia Curriculum Office.

Ohm’s Law Notes JAN 7. Vocabulary current : how quickly the electrons are flowing through the circuit; units: amperes (A) voltage : the electric potential.

Terms Wiring WVAOhm’s Law Misc. FR.

Electric Current Everything (water, heat, smells, …) flows from areas of high concentration to areas of lower concentration. Electricity is no different.

Technical English Unit 43: Current, Voltage and Resistance Dr. Basil Hamed Technical English Islamic University of Gaza April, 2016 Dr. Basil Hamed IUG1.

Measuring Electricity. Electric Potential – the electrical energy that an electron possesses. Electric current is a measure of the rate at which the electric.

Every electrical system must have three parts, a source, a load, and a circuit.  Source - the origin of electrical potential, such as a battery or 120.

Section  List the units used to measure current and voltage.  Describe how to measure current and voltage in a circuit.  Explain the function.

Unit 2 Electrical Quantities and Ohm’s Law

Electricity and its characteristics…  Conventional Flow theory states that flow of electrons is from positive to negative.(Accepted in the transportation.

Electricity It’s How We Get Lights To Work. Intro  For theatre applications it isn’t necessary to have an extensive knowledge of how power is created.

Electricity Basic Terms #1.

Recall that when two conducting objects at different potentials are connected by a conducting wire, charge flows from the object at a higher potential.

Electricity and Circuit

Electricity, Sound and Light

Electric Power Energy Cost

Basic Terms #1 John Jones

ELECTRICAL CIRCUITS All you need to be an inventor is a good imagination and a pile of junk. -Thomas Edison.

Basic Electrical Calculations

ELECTRIC CIRCUITS.

Electric Current.

Modified by Mr. Wanninkhof

Ohm’s Law and Circuit Basics

ELECTRICAL CIRCUITS All you need to be an inventor is a good imagination and a pile of junk. -Thomas Edison.

L 26 Electricity and Magnetism [3]

Please bring your book tomorrow.

P2 - Physics Circuits.

Announcement Ohm’s law video is due at midnight Makeup lab today

Presentation transcript:

Electricity and the devices that carry it.

POWER  Electricity and the devices that carry it.  Rules of Lighting Design  Law of Reflection  Law of Refraction  Inverse Square Law  POWER FORMULA

Electricity  Electricity  Watts -- Measurement of power required to do work  We often measure the amount of Electricity we use in watts.  Amps (Amperes) –Measurement of the flow of electrons (capacity)  Volts –Measurement of electrical potential (push)

Electricity  Power Formula Is:  P= IE  But my favorite is:  W=VA  Watts = Volts(Amps)

Electricity  Amperage is the measurement of electrical flow and is dictated by the capacity of the electrical devices we use.  Everything has a capacity.  Dimmers, Lights, Lamps, And...  CABLE!!!

Electricity  Cable Gage is Very Important.  We use 12 Gage Cable in the Theatre.  It’s actually 12/3 cable.  (that’s 12 gage, 3 wire)  12 Gage has a capacity of 20A  Other gages have other capacities (there’s a chart on page 81 of your book).

Stage Pin Connectors  Hot =or Red  Neutral =White  Ground =Green  /~mharvey/th1501con nectors.html

Electricity  So using this formula, let’s calculate some situations.  How Many Cables?  How many 12/3 Cables do you need to connect the following lamps?  3 – 1000w (or 1K)  5 – 750w  2 – 500w  3 – 250w  Please show your work!

How Many Cables?  How many 12/3 Cables do you need to connect the following lamps?  2– 1000w (or 1K)  3 – 750w  5– 500w  3 – 250w  6 – 100w  Please show your work!