Q. Heat produced in a wire of resistance $R$ due to current flowing at constant potential difference is proportional to
A) $\frac{1}{R^{2}}$
B) $\frac{1}{R}$
C) $R$
D) $R^{2}$
Explanation
(b) At constant p.d., heat produced$\ = \frac{V^{2}}{R}i.e.\ H \propto \frac{1}{R}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.