M

Mr. Dubey • 52.30K Points
Coach 

Q. In an oscillator, the resonant feedback circuit must have must have a low Q in order to achieve stable oscillation.

(A) true
(B) false
(C) ---
(D) ---
Correct : Option (B)

Explanation: 
 if the resonant feedback circuit has a high q, so that there is random phase shift with frequency, the oscillator will have good frequency stability.

Share

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs

Q. In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be

Q. The current gain of a BJT is

Q. A nichrome wire used as a heater coil has the resistance of 2 £2/m. For a heater of 1 kW at 200 V, the length of wire required will be

Q. A parallel AC. circuit in resonance will

Q. A phase difference of 180deg in the circular motion model of a sine wave represents

Q. The resistance encountered by a train in motion is on account of

Q. In open loop system

Q. PID controller:

Q. Which of the following is the definition of proportional band of a controller ?

Q. For 25 kV single phase system power supply frequency is