What is the built-in potential of a semiconductor junction? (in volts)

The ripple frequency of a 6-phase half-wave rectifier for a 230V, 55Hz input will be

The Colpitts oscillator is also known as:

Which of the following conditions needs to be satisfied for the initial startup of oscillations?

When a transistor reaches saturation, which one of the following equations explains the relation between I_B and I_C perfectly?

What will be the value of the base current if the current gain of a common emitter transistor is β = 120 and the collector current Ic = 3 mA?

A class-A transformer coupled, transistor power amplifier is required to deliver a power output of 10 W. The minimum power rating of the transistor should be:

In a multistage RC coupled amplifier, the purpose of the coupling capacitor is to:

In a series RLC circuit, the voltage across the pure capacitor and the pure inductor are:

The common emitter configuration has higher input impedance than which of the following configurations?