Current Electricity Charging Discharging Of Capacitors Question 631
Question: The internal resistance of a cell of e.m.f. 12V is $ 5\times {{10}^{-2}},\Omega $ . It is connected across an unknown resistance. Voltage across the cell, when a current of 60 A is drawn from it, is
[CBSE PMT 2000]
Options:
A) 15 V
B) 12 V
C) 9 V
D) 6 V
Show Answer
Answer:
Correct Answer: C
Solution:
$ V=E-ir $ = $ 12-60\times 5\times {{10}^{-2}} $ = 9V.
BETA
