Question

Explain how does an electric current flow in an electric circuit.
[2 marks]

Answer 1

An electric current flows from the positive (+ve) terminal to the negative (-ve) terminal of the cell in the circuit through the connecting wires as shown in the given figure.
[1.5 marks]
The current flows only when the circuit is complete, i.e., all the connections are intact and the key is switched ‘on’. We see that the bulb glows. But when the wires are broken or not properly connected to the terminals of the cell, the circuit is incomplete and the current does not flow in the circuit. The bulb does not light up.
[0.5 marks]