Assertion (A) : Wein bridge oscillator is generally used as a variable audio frequency oscillator
Reason (R) : by using either capacitor (or) resistor in one of the arms of the bridge, the frequency of a wein bridge oscillator can be varied
(A) Both (A) & (R) are true & (R) is correct explanation of (A)
(B) Both (A) & (R) are true but (R) is not the correct explanation of (R).
(C) (A) is true but (R) is false
(D) (A) is false but (R) is true