Current Electricity Charging Discharging Of Capacitors Question 24
Question: Assertion : In the following circuit emf is 2V and internal resistance of the cell is 1 W and R = 1W, then reading of the voltmeter is 1V. Reason : $ V=E-ir $ where E = 2V, $ i=\frac{2}{2}=1A $ and R = 1 W
[AIIMS 1995]
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
Here, $ E=2V, $
$ 1=\frac{2}{2}=1A $ and $ r=1\Omega $
Therefore, $ V=E-ir=2-1\times 1=1V $