Four identical resistors, P, Q, R and S are connected as shown.

In which of the resistors is the current the same?

1. P and Q only2. R and S only3. P, R and S only4. Q, R and S only5. P, Q, R and S

Q

RS

P

+ -

Which of the following is the unit of electrical current?

1. joule

2. volt

3. ampere

4. watt

5. coulomb

Which of the following is the circuit symbol for a fuse?

1

2

3

4

5

In the circuit shown, the current in the 2 ohm resistor is 1 ampere.

What is the current taken from the battery?1. 0.4 ampere2. 1 ampere3. 2 amperes4. 3 amperes5. 5 amperes

2 ohms 3 ohms

The insulation on the wires in a mains flex is colour coded. Which of the following correctly identifies the live, neutral and earth wires?

Live Earth Neutral

1 blue green/yellow brown

2 green/yellow brown blue

3 blue brown green/yellow

4 brown green/yellow blue

5 brown blue green/yellow

The voltage of the supply is

1. 2 volts2. 4 volts3. 6 volts4. 10 volts5. 32 volts

supply

M

4V 4V 2V

The symbol below is sometimes seen on the rating plates of appliances.

This tells you the appliance

1. operates from 440V

2. does not require a live wire

3. does not require an earth wire

4. has a poisonous casing

5. does not need a fuse

Which of the following correctly lists the units of current and resistance?

Current Resistance

1 watt ohm

2 ampere ohm

3 ohm ampere

4 ohm watt

5 ampere watt

The kilowatt-hour is a unit of

1. voltage

2. current

3. power

4. energy

5. charge

1. A…