Electricity 2

Which of the circuits in the diagram are parallel circuits?

• A

• B

• C

• D

What is the role of a multimeter in an electric circuit?

• To measure the amount of voltage, current, and resistance. It can also be used to test continuity between two points in an electrical circuit.

• To measure the amount of light in an electric circuit

• To measure the amount of sound in an electric circuit

What is resistance in an electric circuit?

• Using up of power of current

• Stops or slows the flow of current

Where does the current get the voltage to make it flow in the circuit?

• The light bulb

• The battery

• The wires

If the current through a circuit is 2A and the resistance of a light bulb in the circuit is 10Ω, what is the voltage of the light bulb?

• 0.2 V

• 5 V

• 12 V

• 20 V

The movement of electrons from atom to atom in a line results in a flow of .........................

• volts.

• electric current.

• electrical energy

When the length of a wire increases by 5 times, the resistance of the wire will

• also increase by 5 times

• decrease by 5 times

• remain the same

In a series circuit, the current is ______________ and the voltage _____________________

• the same throughout, is split among the components

• split among the components, is the same for every component

Power can be calculated using

• P = V x I

• P = V / I

• P = I x R

• P = I / R

Conventionally, current is described as flowing from the ................ terminal of a battery to the ................ terminal.

• Negative.....negative

• Negative....positive

• Positive......negative

• Positive....positive