Circuits and Current

The part shown at the top of the circuit is the ________.

• resistor

• capacitor

• switch

• fuse

A device that turns a circuit off by melting is a _________.

• fuse

• circuit breaker

• resistor

• capacitor

A circuit component that turns the circuit off when it overloads is a ________. It does not melt.

• fuse

• circuit breaker

• battery

• capacitor

A circuit is made with the following resistors in parallel: 2Ω, 4Ω, and 6Ω. The total resistance is ____.

• more than 6Ω

• betwen 2Ω and 6Ω

• less than 2Ω

A circuit is made with the following resistors in series: 2Ω, 4Ω, and 6Ω. The total resistance is ____.

• more than 6Ω

• betwen 2Ω and 6Ω

• less than 2Ω

Measures how much charge passes a point per second. (How fast charge flows.)

• Voltage

• Current

• Resistance

• Power

Measures the potential difference across a component.

• Voltage

• Current

• Resistance

• Power

Measures circuit's ability to "slow down" the flow of charges.

• Voltage

• Current

• Resistance

• Power

What is the component show on the left of the circuit?

• Switch

• Resistor

• Battery

• Diode

What is the component shown on the right (top) of the circuit?

• Switch

• Resistor

• Battery

• Diode