Current Electricity Charging Discharging Of Capacitors Question 581
Question: The e.m.f. of a cell is E volts and internal resistance is $ r $ ohm. The resistance in external circuit is also $ r $ ohm. The p.d. across the cell will be
[CPMT 1985; NCERT 1973]
Options:
A) E/2
B) 2E
C) 4E
D) E/4
Show Answer
Answer:
Correct Answer: A
Solution:
Since both the resistors are same,
Therefore potential difference $ =V+V=E $
Therefore $ V=\frac{E}{2} $
BETA
