### Diagnostic questions on parallel circuits

**What the activity is for**

The diagnostic questions can be used to check the pupils' understanding of key ideas introduced in this episode.

**What to prepare**

- printed copies of these questions

**What happens during this activity**

The questions might be used for homework or as the basis for discussion in class.

The Same circuit?

question is designed to probe pupils' ability to recognise equivalent ways of drawing a circuit with two parallel branches.

In fact, all of the circuit diagrams are correct representations.

The Identical resistors

question probes understanding about the relative sizes of the electric current at different points in a parallel circuit.

- The current at c is the same size as the current at b.
- The current at d is the same size as the current at b.
- The current at a is bigger than the current at b.
- The current at e is the same size as the current at a.

The Ammeter readings

question probes whether pupils can apply their understanding of electric current to a parallel circuit.

Circuit b: A1 is 0.5 ampere; A3 is 0.3 ampere.

### Prepare for teaching using these links

kitset path represent & reason outline decide suggest issues evidence