Question

(1) The Q factor for an oscillator which stores 1.2 mW of power while dissipating
0.6m W in every cycle is given by
(A) 0.50
(B) 2
(C) 4 T​

Answer 1

Answer:

The Q factor for an oscillator that stores 1.2 mW of power while dissipating 0.6m W in every cycle is 12.56.

Explanation:

The quality factor(Q) of an oscillator is defined as "the ratio of initial energy stored in the resonator to the energy lost or dissipated in one radian of the cycle of oscillation".

Q=2π×Energy stored $/$Energy dissipated per cycle    (1)

The values given in the question are;

The energy stored =1.2 mW=1.2×10⁻³W     (2)

The energy dissipated per cycle=0.6m W=0.6×10⁻³W   (3)

By putting the values of equation (2) and equation (3) in equation (1) we get;

Q=2π×1.2×10⁻³W $/$0.6×10⁻³W

Q=2π×2=4π=12.56

Hence, The Q factor for an oscillator that stores 1.2 mW of power while dissipating 0.6m W in every cycle is 12.56.