Current Electricity Charging Discharging Of Capacitors Question 551

Question: The resistor of resistance ‘R’ is connected to 25 V supply and heat produced in it is 25 J/sec. The value of R is

[Orissa PMT 2004]

Options:

A) $ 225\Omega $

B) $ 1\Omega $

C) $ 25\Omega $

D) $ 50\Omega $

Show Answer

Answer:

Correct Answer: C

Solution:

$ P=\frac{V^{2}}{R} $

Therefore $ R=\frac{V^{2}}{P}=\frac{25\times 25}{25}=25,\Omega $