WJEC GCSE Physics electric circuits and electromagnetism overview quiz quiz

The energy transferred per unit charge

The rate of flow of electric charge

The resistance of a component

The total charge in a circuit

Charge equals current divided by time

Charge equals current times time

Charge equals potential difference times resistance

Charge equals power times time

Largest near the battery

The same at every point

Shared between the components

Used up by each component

It increases

It decreases

It stays the same

It becomes infinite

An S-shaped curve

A straight line through the origin

A flat line at zero

A curve that conducts one way only

230 Hz

50 Hz

100 Hz

12 Hz

The neutral wire

The live wire

The earth wire

Any wire works equally

To carry the working current

To keep the metal case at 0 V for safety

To increase the resistance

To step up the voltage

2 kWh

6 kWh

3 kWh

5 kWh

Fleming's right-hand rule

Fleming's left-hand rule

The right-hand grip rule

Lenz's rule

Use a wooden core

Increase the current or add more turns

Reduce the number of turns

Use alternating current only

Turns electricity into motion using the motor effect

Induces an alternating voltage by rotating a coil in a magnetic field

Stores charge for later use

Steps voltage down for the home

The current ratio

The turns ratio of primary to secondary

The resistance ratio

The power ratio

Direct current is too small

They need a continually changing magnetic field to induce a voltage

Direct current melts the core

Alternating current has no resistance

The primary

The secondary

Both equally

Neither, it has fewer overall