## Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is

f = 1 / (2π RC√6)
f = 1 / (2π√R(C1 + C2))
f = 1 / (2π√RC)
None of these

## Analog Electronics One of the following is the primary function of an oscillator

produces sinusoidal oscillations
None of these
generates non sinusoidal waveforms
generates sustained oscillations at a constant amplitude and specific frequency

## Analog Electronics In a differential amplifier, the CMRR is limited mostly by the

supply voltages .
tolerance of the resistors.
CMRR of the opamp.
gain - bandwidth product.

## Analog Electronics For a diode, reverse recovery time is defined as the time between the instant diode current becomes zero and the instant reverse recovery current decays to

10% of reverse peak current.
15% of reverse peak current.
0.
25% of reverse peak current.

## Analog Electronics A 741 C has

an input impedance of 2 MÃŽÂ©.
All of these
an output impedance of 75 ÃŽÂ©.
a voltage gain of 100,000.

## Analog Electronics The value of total collector electric current in a CB circuit is

IC = ÃŽÂ±IE - ICO.
IC = ÃŽÂ²IE.
IC = ÃŽÂ±IE + ICO.
IC = ÃŽÂ±IE.