Electric Current Section Review Quiz 13.2

Electric charges flow from __________.

• insulators to conductors

• high-voltage areas to low-voltage areas

• low-voltage areas to high-voltage areas

• low-resistance areas to high-resistance areas

__________ is the push that causes charges to move.

• Resistance

• Static

• Voltage difference

• Induction

A(n) __________ is a closed, conducting path.

• ampere

• resistor

• circuit

• current

__________ is the tendency for a material to oppose the flow of electrons.

• Induction

• Conduction

• Transistance

• Resistance

Which of the following actions increases the resistance of a wire?

• making it longer

• decreasing the temperature

• making it thicker

• making it shorter

According to Ohm's law, as the resistance in a circuit __________, the current __________.

• increases, decreases

• decreases, decreases

• increases, doubles

• increases, remains constant

Electric current in a circuit is measured in _________.

• volts

• watts

• ohms

• amperes

What is the current in a circuit if the voltage difference is 15 V and resistance is 15 Ω?

• 1.0 A

• 30 A

• 0.0 A

• 225 A

Calculate the resistance in a circuit if the current flowing is 12 A and the voltage difference is 480 V.

• 4.0 A

• 40 Ω

• 40 A

• 4 Ω

Which of the following is a unit of electrical resistance?

• Ampere

• Ohm

• Watt

• Volt