Question

Calculate the amount of heat generated in a conductor carrying current, when a current of 2A flows for 1 minute through a resistance of 200 Ω (Given J=4200 J/kcal) *


A.114.2 k.cal

B.22.84 k.cal

C.1.142 k.cal

D.11.42 k.cal

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Answer 1

Explanation:

3.If n(A) = n(B),then A

empty

equal

disjoint

equivalent

Answer 2

Answer:

The heat generated in a conductor is 11.42kcal.

Explanation:

Given:

I = 2A

R = 200Ω

T = 60sec

Here,

The current is denoted by I.

The resistance is denoted by R.

The time is denoted by T.

The heat is denoted by H.

Now,

By the equation,

$H=I^{2} RT$

$H = 2^{2}\times 200 \times 60$

H = 48000J

H = 48000/4.2cal

   = 11.42kcal

So, the heat generated in a conductor is equal to 11.42kcal.