Explore topic-wise MCQs in Engineering.

For a forward-biased diode, as temperature is ________, the forward current ________ for a given value of forward voltage.

Refer to this figure. The value of DC is

Class D amplifier efficiencies can reach practical levels of more than 90%.

In what decade was the first transistor created?

What is the unit of the parameter ho?

For ________, Shockley's equation is applied to relate the input and the output quantities.

Class B operation is provided when the dc bias leaves the transistor biased just off, the transistor turning on when the ac signal is applied.

A silicon power transistor is operated with a heat sink ( SA = 1.5 C/W). The transistor, rated at 150 W (25 C), has JC = 0.5 C/W, and the mounting insulation has CS = 0.6 C/W. What is the maximum power that can be dissipated if the ambient temperature is 50 C and TJmax = 200 C?

Which operation class is generally used in radio or communications?

Which of the following applications include a phase-locked loop (PLL) circuit?

The start-up gain of an oscillator must be ________ one.

A type of regulator circuit that is quite popular for its efficient transfer of power to the load is the ________.

A reverse-biased silicon diode has about 0.7 V across it.

For a given input frequency, a half-wave rectifier is easier to filter than a full-wave rectifier.

VRRM is the same as PIV rating.

Collector-feedback bias is another name for base bias.

Refer to the given figure. ID = 6 mA. Calculate the value of VDS.

The voltage gain of a common-source amplifier is found by the product of gm and Rd.

What is the most frequently encountered transistor configuration?

For practical transistors the level of alpha typically extends from ________ to ________ with most approaching the higher end of the range.

Calculate VCE.

In an FET transistor, the depletion region is ________ near the top of both p-type materials.

A silicon diode in a half-wave rectifier has a barrier potential of 0.7 V. This has the effect of

Which diode arrangement will supply a positive output voltage?

How many layers of material does a transistor have?

For a forward-biased diode, as temperature is , the forward current for a given value of forward voltage.

Refer to this figure. The value of _DC is

What is the unit of the parameter h_o?

A silicon power transistor is operated with a heat sink ( _SA = 1.5 C/W). The transistor, rated at 150 W (25 C), has _JC = 0.5 C/W, and the mounting insulation has _CS = 0.6 C/W. What is the maximum power that can be dissipated if the ambient temperature is 50 C and T_Jmax = 200 C?

V_RRM is the same as PIV rating.

Refer to the given figure. I_D = 6 mA. Calculate the value of V_DS.

The voltage gain of a common-source amplifier is found by the product of g_m and R_d.

For practical transistors the level of alpha typically extends from to with most approaching the higher end of the range.

Calculate V_CE.