Current Electricity Charging Discharging Of Capacitors Question 285
Question: A potentiometer has uniform potential gradient across it. Two cells connected in series (i) to support each other and (ii) to oppose each other are balanced over 6m and 2m respectively on the potentiometer wire. The e.m.f.’s of the cells are in the ratio of
[MP PMT 2002]
Options:
A) 1 : 2
B) 1 : 1
C) 3 : 1
D) 2 : 1
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{E _{1}}{E _{2}}=\frac{l _{1}+l _{2}}{l _{1}-l _{2}}=\frac{(6+2)}{(6-2)}=\frac{2}{1} $
BETA
