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Assertion: Capacitance serves as a block...

Assertion: Capacitance serves as a block for `DC` and offers an easy path to `AC`.
Reason: Capacitance reactance is inversely proportional to frequency.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true and R is NOT the correct explanation of A.

C

A is true but R is false

D

A is false and R is true

Text Solution

Verified by Experts

The correct Answer is:
A
Capacitive reactacne `= (1)/(2pi fC)`
So, as f (frequency) increases, reactance decreases.
For dc, frequency = 0, hence capacitor offers infinite reactance. So, it blocks dc.
For ac, frequency `ne 0`, hence capacitor offers low reactance and allows ac to pass
Hence assertion and reason both are true Assertion is properly exlained by reason.
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