Question

(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 Ω?

Answer 1

Answer:

Answer : a)Rubber is an insulator and does not allow the passage of electric current through it, so when electricians wear rubber gloves electric current cannot pass through them, so they don't get shock

Answer 2

(a) Insulators are the components that stop the current flow.

(b)  Ohm’s law  is needed to send a current of 6 A through an electrical appliance having a resistance of 40 Ω  

Explanation:

(a) The rubber acts as an insulator. Insulators are the components that stop the current flow i.e., do not conduct electric current. So, the rubber hand gloves stop the passages of the electric current which keeps them safe from any shock they might experience while working with electricity.

(b) According to ohm’s law, the current flowing between two points in an electric circuit is directly proportional to the voltage across those two points.

i.e., Voltage, V ∝ Current (I)  

From ohm’s law, V = IR

We have, current, I = 6 A, and resistance, R = 40 Ω.

Therefore, potential difference, $V= IR= 6 A \times40 \Omega = 240 V.$

You can get all the answers of Chapter 1 in the link below:

https://brainly.in/question/14961133

Few questions related to this chapter:

What would be the effect on the resistance of a metal wire of

(a) increasin.....

brainly.in/question/14914290

The resistivity of a certain material is 0.6 Ωm. The material is most likel.....

brainly.in/question/14914303