" In half-wave rectifier,maximum percentage of "A" ."C" .power that can be converted into D.C power is "

In a half wave rectifier, the r.m.s value of the A.C. component of the wave is

A steel wire has a mass of 50 g//m and is under tension 450N. (a) Find the maximum average power that can be carried by the transverse wave in the wire if the amplitude not to exceed 20% of the wavelength. (b) The change in maximum average power if the mass per unit length of the wire is doubled. (Use pi^(2)~=10.)

A half-wave rectifier is used to convert 50 Hz A.C. to D.C voltage. The number of pulses per second in the rectified voltage are

A half wave rectifier provides DC output power of 30 W when 100 W AC power is supplied to it what will be the rectification efficiency and power efficiency

In a half wave rectifier output is taken across a 90 ohm load resistor. If the resistance of diode in forward biased condition is 10 ohm , the efficiency of rectification of ac power into dc power is.

A series LCR circuit with L=0.125//pi H,C=500//pi nF,R=23Omega is connected to a 230 V variable frequency supply. (a)What is the source frequency for which current amplitudes is maximum? Obtain this maximum value. (b)What is the source frequency for which average power absorbed by the circuit is maximum ?Obtain the value of this maximum power.(c )For what reactangle of the circuit, the power transferred to the circuit is half the power at resonance?What is the current amplitude at this reactangle ? (d)if omega is the angular frequency at which the power consumed in the circuit is half the power at resonance, write an expression for omega (e)What is the Q -factor (Quality factor) of the given circuit?