Circuit Electricity Quiz

What is the function of a cell in an electrical circuit?

• Measures voltage

• Provides energy and drives the current around the circuit

• Converts electrical energy to light energy

• Measures current

Which component is used to measure the current in an electrical circuit?

• Battery

• Filament lamp

• Ammeter

• Cell

What is the primary function of a filament lamp in a circuit?

• Provides energy

• Measures current

• Converts electrical energy to light energy

• Measures voltage

What is the function of a voltmeter in an electrical circuit?

• Controls the amount of current

• Measures the potential difference across components

• Turns the circuit on or off

• Increases the circuit resistance

What is the primary function of a switch in an electrical circuit?

• Measures voltage

• Controls resistance

• Turns the circuit on or off

• Modifies the circuit path

What is the function of a variable resistor in a circuit?

• To prevent current flow entirely

• To allow the current in a circuit to be varied

• To cut off the current when it becomes too high

• To allow current to flow only in one direction

What is the primary purpose of a fuse in electrical circuits?

• To change the current in response to light

• To allow the current in a circuit to be varied

• To break the circuit if the current becomes too high

• To only allow current to flow in one direction

Which component in an electrical circuit only allows current to flow in one direction?

• Light dependent resistor

• Variable resistor

• Diode

• Fuse

What does a light dependent resistor do?

• Cuts off the current when it is too high

• Allows the current to be varied

• Allows current to flow only in one direction

• Changes the current in response to different light conditions

What is the function of a Light Emitting Diode (LED)?

• Converts electrical energy into light energy if the current is flowing in the correct direction

• Changes the current in the circuit in response to different ambient temperatures

• Amplifies the electrical signals in a circuit

• Stores electrical energy temporarily