MAHATRANSCO AE Recruitment 2017- Electrical Quiz 23

In an R-C phase shift oscillator using FET and 3-section R-C phase shift network, the condition for sustained oscillation is
where,

In the transistor waveform shown, which alphabet describes class B amplifier?

In centre tapped full wave rectifier circuit shown, what is not correct in negative half cycle?

Three identical amplifier each having a voltage gain of 50 are cascaded. The open loop voltage gain of the combined amplifier is

A sinusoidal signal of 100Hz is applied to an amplifier. The output current is

What is the approximate percentage increase in power due to distortion?

For a transconductance amplifier, input and output resistances are respectively

An OP-AMP has a common mode gain of 0.01 and a differential mode gain of 10⁵. Its common mode rejection ratio would be

The input resistance R_i and output resistance R₀ of an ideal current amplifier, in ohms, are