The maximum concentration of the element which can be dissolved in solid silicon at a given temperature is termed as

Signal x(t) is shown below:

The values of `t' for which x(3t - 2) will be zero are:

Voltage 1 + 2 sin ωt is applied to the circuit shown below:

The capacitor C and diode D can be considered ideal. R_L is very large resistance. Then the magnitude of the average voltage across R_L is __________ volt.

Which of the following conditions must be satisfied for a transistor to remain under saturation?

1. Its collector to base junction should be under forward bias.
2. Its collector to base junction should be under reverse bias.
3. Its emitter to base junction should be under reverse bias.
4. Its emitter to base junction should be under forward bias.

Select the correct answer from the codes given below:

For parallel plane waveguides, which is the mode with lowest cut-off frequency?