Questions on Electric Circuits

Q8. John connects up the circuit shown below.

The bulb is not bright enough. His friend suggests four circuits which could be used to make the bulb brighter.

(a) Which is the correct circuit to use: A, B, C or D?

1 mark

Next John sets up circuit E and notes the reading on the ammeter.

He then places another bulb in the circuit, to make circuit F.

He notes the ammeter reading in circuit F.

(b) How will the ammeter reading in circuit F compare with that in circuit E? Explain your answer.

2 marks

(c) Draw a circuit diagram in which two bulbs are lit as brightly as the bulb in circuit E, and the ammeter reading is the same as in circuit E.

1 mark

Maximum 4 marks