Published by:
CGP EDU Academic Team
Published on: September 12, 2026
An expression for rate of heat generated, if a current of 
ampere flows through a resistance of 
, is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
To determine the rate of heat generated in a resistor through which a current flows, we can use Joule's law, which states that the power (rate of heat generation) is given by the formula:
Power (P) = I^2 R
Where:
- I is the current in amperes, and
- R is the resistance in ohms.
Hence, if a current of
(I) flows through a resistance of 
(R), the rate of heat generated is I^2R.
Therefore, the correct answer is option A:
.
Power (P) = I^2 R
Where:
- I is the current in amperes, and
- R is the resistance in ohms.
Hence, if a current of
(I) flows through a resistance of (R), the rate of heat generated is I^2R. Therefore, the correct answer is option A:
.
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