Question

Two bulbs are connected to the circuit in the following ways:



In which case the bulb will glow brighter? (3 marks)

Answer 1

When the bulbs are connected in series:

• Brightness of light in them reduces because the electrical energy from the electrical cell is distributed among all of the bulbs connected in series. (1 mark)

When the bulbs are connected in parallel:

• Brightness of light in them do not reduce because the electrical energy from the electrical cell is same among all of the bulbs connected in parallel. (1 mark)

So, parallel connection bulb will glow brighter. (1 mark)