Measuring current.

If an ammeter is placed at different positions in a series circuit as below, it will give the same reading in each position:

This shows that the **current is the same everywhere in a series circuit**.
The current is not therefore consumed, it is the same in all parts of the circuit.
The fact that the current is not 'used up' is a source of surprise to many people.
Many expect there to be less current in the circuit after it has gone through
the first bulb but this is not the case.

A parallel circuit behaves differently, e.g.

The current is not the same in all parts of the circuit. The current put out by the battery divides up between the different branches of the circuit. In this particular case, if all the bulbs are identical.

If A1 = 6 Amps, A6 = 6 Amps

A2 = 4 Amps, A5 = 4 Amps

A3 = 2 Amps, A4 = 2 Amps

Safety, Static ElectricityCharge

Current Electricity, Making a bulb light, Models

Atomic Theory

Conductors and insulators

Switches, Short circuits, Circuit diagrams

Current, Voltage

Electrical circuits

Resistance

Power

Assessment/Discussion Material

Reference Material