A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

In a common emitter, unbypassed resister provides

An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed

Voltage Series (feedback also called series-shunt feedback) results in

Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in

The MOSFET switch in its onstate may be considered equivalent to

A differential amplifier is invariably used in the i/p stage of all OP-amps.This is dome basically to provide the OP-amps with a very high

Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

A 9 mH coil is in parallel with a 0.015 µF capacitor across an 18 kHz ac source. The coil's internal resistance RW, is 60 Ω. The circuit impedance is

The impedance at the resonant frequency of a series RLC circuit with L = 20 mH, C = 0.02 µF, and RW = 90 Ω is