Question

Why do bulbs have two terminals? [2 marks]

Answer 1

The bulbs have two terminals because a circuit can be completed only when there are both the positive terminal as well as negative terminal. [1 mark]

As the current flow is allowed only when the circuit is complete and current flows from positive to negative terminal of a cell in a circuit. In order to connect the bulb in a closed or a complete circuit arrangement, the bulb has two terminals. [1 mark]