Current Electricity Charging Discharging Of Capacitors Question 638
Question: The emf of a battery is 2 V and its internal resistance is 0.5 W. The maximum power which it can deliver to any external circuit will be
[AMU (Med.) 2002]
Options:
A) 8 Watt
B) 4 Watt
C) 2 Watt
D) None of the above
Show Answer
Answer:
Correct Answer: C
Solution:
$ {P _{\text{max}}}=\frac{E^{2}}{4r}=\frac{{{(2)}^{2}}}{4\times 0.5}=2,W $
BETA
