Current Electricity Charging Discharging Of Capacitors Question 204
Question: A Daniel cell is balanced on 125 $ cm $ length of a potentiometer wire. Now the cell is short-circuited by a resistance 2 ohm and the balance is obtained at 100 $ cm $ . The internal resistance of the Daniel cell is
[UPSEAT 2002]
Options:
A) 0.5 ohm
B) 1.5 ohm
C) 1.25 ohm
D) 4/5 ohm
Show Answer
Answer:
Correct Answer: A
Solution:
$ r=( \frac{l _{1}-l _{2}}{l _{2}} ),R=( \frac{25}{100} ),2=0.5,\Omega $
BETA
