Calculate the amount of heat generated when 7200 coulombs of charge is transferred in one hour through a potential difference of 50V.

Given: 7200 coulombs of charge is transferred in one hour through a potential difference of 50V.

To find: Amount of heat generated.

Solution:

We know,

$Heat \ generated =  Voltage \times Current \times Time$

or

$Heat = VIt$    ........... (1)

We also know $Current(I)= \frac{Charge(Q)}{Time(t)}$

So, we get $Q = I \times t$  ......(2)

Substituting the value of Q in equation (1):

$Heat = V \ times Q$

Heat= QV

Therefore, heat generated =$7200 \times 50 = 3,60,000 $

So, we get Total amount of heat generated = $3.5 \times 10^5 \ joule$
 

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Updated on: 10-Oct-2022

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