(a) Why do electricians wear rubber hand gloves while working with electricity?(b) What p.d. is needed to send a current of 6 A through an electrical appliance having a resistance of $40 \Omega ?$

(a) Rubber is an insulator. Electricians wear rubber hand gloves while working with electricity because it will protect them from getting an electric shock by not allowing the current to pass.

(b)

Given:

$I=6 \mathrm{~A}$

$R=40 \Omega$

To find:

Potential difference

Solution:

We know that $V=I R$

So, $V=6 \times 40$

$V=240 \mathrm{~V}$

So $240 \mathrm{~V}$ is the potential difference needed to send a current of 6 A through an electrical appliance that has a resistance of $40 \Omega$.

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Updated on: 10-Oct-2022

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