Current Electricity Charging Discharging Of Capacitors Question 463
Question: Two identical batteries, each of e.m.f. 2 volt and internal resistance 1.0 ohm are available to produce heat in an external resistance $ R=0.5 $ ohm by passing a current through it. The maximum Joulean power that can be developed across R using these batteries is
[CBSE PMT 1990; BHU 1997]
Options:
A) 1.28 watt
B) 2.0 watt
C) $ \frac{8}{9},watt $
D) 3.2 watt
Show Answer
Answer:
Correct Answer: B
Solution:
$ {P _{\max }}=n,( \frac{E^{2}}{4,r} )=2,( \frac{2\times 2}{4\times 1} )=2,W $
BETA
