CUET · PHYSICS · PYQ PAPER 2025
According to Joule's law of heating, the rate of heat produced in a resistor is
(A) directly proportional to the current for the given resistance
(B) directly proportional to the square of the current for the given resistance
(C) directly proportional to the resistance for a given value of current
(D) inversely proportional to the resistance for a given voltage
Choose the correct answer from the options given below:
- A (A), (B) and (C) only
- B (A), (C) and (D) only
- C (A), (B), (C) and (D)
- D (B), (C) and (D) only
Answer & Solution
Correct Answer
(D) (B), (C) and (D) only
Step-by-step Solution
Detailed explanation
(B), (C) and (D) only (B) directly proportional to the square of the current for the given resistance: This is correct \(\left(P \propto I^2 R\right)\). (C) directly proportional to the resistance for a given value of current: This is correct \(\left(P \propto I^2 R\right)\).…
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