Question

Sushil is in the habit of charging his mobile and

then leaving the charger connected through the

mains with the switch on. When his sister Asha

pointed it out him, he replied there was no harm

as the mobile had been disconnected. Asha then

explained to him and convinced him, how the

energy was still being wasted as the charger was

continuously consuming energy. Answer the

following questions.

(a) What values did Asha display in convincing

her brother?

(b) What measures in your view, should be

adopted to minimise the wastage of electric

energy in your households?

(c) Imagine an electric appliance of 2 W, le

connected to the mains for 20 hours. Estimate

the amount of electrical energy wasted

Answer 1

Explanation:

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