Current Electricity Charging Discharging Of Capacitors Question 469

Question: Heat produced in a wire of resistance R due to current flowing at constant potential difference is proportional to

[MP PET 1993]

Options:

A) $ \frac{1}{R^{2}} $

B) $ \frac{1}{R} $

C) R

D) $ R^{2} $

Show Answer

Answer:

Correct Answer: B

Solution:

At constant p.d., heat produced $ =\frac{V^{2}}{R},i.e.,H\propto \frac{1}{R} $