Electricity Quiz Review

How much current flows through a lamp with a resistance of 60 ohms when the voltage across the lamp is 12 V

(a)  

What is the Resistance of an electric frying pan that draws a current of 12 A when connected to a 120-V Circuit

(a)  

Electric charges always flow from _____ areas to _____ areas.

• positive, negative

• negative, positive

• positive, neutral

• neutral, negative

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Which of the following will increase the resistance of a wire?

• using a thicker/wider wire

• using a shorter wire

• increasing the temperature of the wire

• using silver instead of copper

Which two areas of physical science are closely related to the development of electric motors and generators?

• sound and light

• electricity and sound

• light and magnetism

• electricity and magnetism

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Which of the following will decrease the strength of the magnetic field around a wire?

• increasing the current flowing through the wire

• using less loops around the iron core

• flipping the direction of the current flowing through the wire

• using a larger iron core

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Silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps?

• 1.98 V

• 0.000198 V

• 5,050 V

• 100.0198 V

This exerts a force that causes other electric charges to move.

• electrical poles

• electrical fields

• insulators

• conductors

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Which circuit below contains the greatest voltage?

• A circuit with a current of 20 amps and a resistance of 16 ohms

• A circuit with a current of 10 amps and a resistance of 10 ohms

• A circuit with a current of 25 amps and a resistance of 16 ohms

• A circuit with a current of 20 amps and a resistance of 10 ohms

Match the following

• Temporary magnet made by placing a piece of iron inside a current carrying coil of wire.

• Electromagnets

• Circuit that has only one pathway for current to travel through

• Voltmeter

• Circuit that has more than one pathway for current to travel through

• Parallel Circuit

• A device that measures the voltage difference in a circuit

• Series Circuit

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