Current Electricity Charging Discharging Of Capacitors Question 465
Question: The heating coils rating at 220 volt and producing 50 cal/sec heat are available with the resistances $ 55,\Omega ,\ 110,\Omega ,\ 220,\Omega $ and $ 440,\Omega $ . The heater of maximum power will be of
[MP PMT 1985]
Options:
A) $ 440,\Omega $
B) $ 220,\Omega $
C) $ 110,\Omega $
D) $ 55,\Omega $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{H}{t}=\frac{V^{2}}{R} $
Therefore $ \frac{H}{t}\propto \frac{1}{R} $
BETA
