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Published byRalph Horton Modified over 4 years ago

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Ch 8-9 Review

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What is the current flowing through this circuit? 3 A

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In a circuit, 5 amperes of current passes through the light bulb. The resistance of the light bulb is 1.5 ohms. What is the voltage of the battery? V = IR 7.5 V

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If electricity costs 10 cents per kilowatt-hour, how much does it cost to run a 100-watt light bulb for one hour? 100/1000=.1 x.1 = $.01

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Which figure(s) above is a parallel circuit? I and II

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Calculate the total resistance of the series circuit if each resistor is 2 ohms. 6 ohms

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What device designed to open an overloaded circuit and prevent overheating? Circuit breaker or fuse

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The value of current is the same at all points in a ______circuit. series

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A measure of the potential energy of an electric charge voltage

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A material through which charges do not flow insulator

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The flow of electric charges in a circuit current

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The rate at which energy flows in a particular circuit power

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Describe how you could quickly determine whether a string of lights is wired in series or in parallel. Remove one bulb. If it's a series, all the lights will go out; if it's parallel, the remaining lights will stay lit.

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Which of the following is the correct relationship among power, current, and voltage? a. P = I/V b. V = P I c. P = I V d. E = P t C

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The property of a material that allows charge to flow Conductivity

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What electrical symbol is represented below? resistor

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*** Given an example of a series circuit. Christmas lights

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What type of circuit is pictured? series

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How many batteries are in the circuit below? 2

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What electrical symbol is represented below? Light bulb

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