Current Electricity Charging Discharging Of Capacitors Question 215
Question: Two cells when connected in series are balanced on 8m on a potentiometer. If the cells are connected with polarities of one of the cell is reversed, they balance on 2m. The ratio of e.m.f.’s of the two cells is
Options:
A) $ 3:5 $
B) $ 5:3 $
C) $ 3:4 $
D) $ 4:3 $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{E _{1}}{E _{2}}=\frac{l _{1}+l _{2}}{l _{1}-l _{2}}=\frac{(8+2)}{(8-2)}=\frac{5}{3} $
BETA
