Question

Assertion (A): The main use of positive feedback is in oscillator circuits.

Reason (R): In an oscillator the loop gain Aβ is kept slightly more than unity

a.

Both A and R are correct and R is correct explanation for A

b.

Both A and R are correct but R is not correct explanation for A

c.

A is correct R is wrong

d.

A is wrong R is correct

Answer: (b).Both A and R are correct but R is not correct explanation for A

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Q. Assertion (A): The main use of positive feedback is in oscillator circuits. Reason (R): In an oscillator the loop gain Aβ is kept slightly more than unity

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