Electro Magnetic Induction And Alternating Currents Question 128
Question: Assertion : A capacitor of suitable capacitance can be used in an ac circuit in place of the choke coil. Reason : A capacitor blocks dc and allows ac only.
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 are both false.
Show Answer
Answer:
Correct Answer: B
Solution:
We can use a capacitor of suitable capacitance as a choke coil, because average power consumed per cycle in an ideal capacitor is zero. Therefore, like a choke coil, a condenser can reduce ac without power dissipation.
BETA
