Quiz Electricity

Which of the following is an insulator?

• mica

• silver

• copper

• gold

What is a rheostat?

• a variable transformer

• a variable resistor

• a variable capacitor

• a variable inductor

What is the unit measurement of a capacitor?

• ohms

• henry

• farad

• volt

What is a potentiometer?

• meter for measuring voltage

• meter for measuring current

• meter for measuring resistance

• a variable resistor

What is the unit measurement of electrical power?

• Volt

• Watt

• Coulomb

• Amp

The number of cycles per second is known as

• sine wave

• square wave

• period

• frequency

A motor is a rotating machine that converts

• AC to DC

• mechanical into electrical energy

• electrical into mechanical energy

• voltage to current

A generator is a rotating machine that converts

• AC to DC

• mechanical into electrical energy

• electrical into mechanical energy

• voltage to current

What is the unit measurement of inductance?

• ohms

• henry

• farad

• volt

What is purpose of a fuse?

• To increase current flow in the circuit

• To decrease current flow in the circuit

• To prevent too much current flow in the circuit

• To prevent too little current flow in the circuit