A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V? Give a reason. Name two safety devices which are connected to the live wire of a household electric circuit.

A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V? Give a reason.

A fuse is rated 8A. Can it be used with an electrical appliance rated 5 KW, 200 V? Give a reason.
Name two safety devices which are connected to the live wire of a household electric circuit.

(i) I = P/V = 5000/200 = 25 A

No, it cannot be used.

Maximum current drawn by the appliance is greater than the fuse rating.

(ii) M.C.B. Fuse, switch, ELCB