Current Electricity Charging Discharging Of Capacitors Question 531

Question: An external resistance R is connected to a battery of e.m.f. V and internal resistance r. The joule heat produced in resistor R is maximum when R is equal to

[MP PET 2001]

Options:

A) r

B) $ \frac{r}{2} $

C) 2r

D) Infinitely large

Show Answer

Answer:

Correct Answer: A

Solution:

For maximum joule heat produced in resistor external resistance = Internal resistance.