Question

a current of 5 ampere is passed through a conductor of 12 ohm for 2 minutes calculate the amount of heat produced

Answer 1

Formula is Heat = I * I * I * R * t          ----------- (i)

Given, I = 5A, R = 12 ohms, t = 120s

On substituting in (i) we get

H = 25 * 12 * 120

    = 36000J

    ~ 36KJ


Hope this helps!

Answer 2

Answer:

Heat produced is 36KJ.

Explanation:

Heat produced= I²RT

Here I = 5 ampere

R= 12 ohm

time = 2 minutes=  120 secs

Now substituting the values in the formula we get,

H= 5² x 12 x 120

H= 25 x 1440

H= 36000 Joules     (joules is the unit of energy)

or 36KJ.

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