Electricity Test

Which electrical safety device can 'trip' and cause the circuit to stop flowing?

• fuse

• breaker

• switch

• battery

Which electrical safety device contains a small metal wire on the inside of it that melts when its amperage gets too high?

• fuse

• breaker

• switch

• battery

Which of the following is the correct unit for voltage?

• amps

• volts

• Ohms

• Watts

What is the correct units for power?

• amps

• volts

• Ohms

• watts

Which of the following is the correct unit to use when measuring current?

• Ohms

• watts

• amps

• volts

Which of the following is the correct units for resistance?

• Ohms

• watts

• volts

• amps

Which of the options shown is the correct formula for calculating electrical force pushing electrons in a circuit, i.e. voltage(V)?

• voltage divided by current

• voltage multiplied by resistance

• current divided by resistance

• current multiplied by resistance

Using the triangle shown, calculate the voltage in the circuit when their is 4 amps of current and the resistance is 3 ohms

• 12

• 10

• 24

• 14

Using the triangle shown, calculate the current flow in the circuit when the voltage = 12v and the resistance = 4Ω

• 3 amps

• 3 ohms

• 4 amps

• 4 volts

Using the triangle shown, calculate the resistance in the circuit when the voltage = 12v and the current = 6 amps

• 2 amps

• 12 ohms

• 2 ohms

• 12 volts