The figure shows a domestic electric circuit. Study this circuit carefully and list any three errors in the circuit and justify your answer.

Question

(i) The figure shows a domestic electric circuit. Study this circuit carefully and list any three errors in the circuit and justify your answer.

(ii) Give one difference between the wires used in the element of an electric heater and in a fuse. 

(iii) List two advantages of parallel connection over series connection.

Answer 1

(i) Following are the errors in the circuit given above. a) Fuse is incorrectly connected to the Neutral wire (N) it must be connected to the live wire (L). b) Bulb B2 is not connected to the neutral wire. 

(ii) Element of electric heater has high melting point in order to stand high temperatures while element of fuse has low melting point. 

(iii) 1. Each appliance will have and equal potential difference. 

2. Each appliance will have a separate switch to ON/OFF the flow of the current.