ANALOG ELECTRONICS QUIZ

Which of the following is not associated with a p-n junction

Charge storage capacitance

Junction capacitance

Channel length modulation

Depletion capacitance

TRUE ANSWER : ?
YOUR ANSWER : ?

When the diode is forward biased, it is equivalent to

a high resistance.

an off switch.

None of these

an on switch.

TRUE ANSWER : ?
YOUR ANSWER : ?

An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are

fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz

fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz

fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz

fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz

TRUE ANSWER : ?
YOUR ANSWER : ?

When a reverse bias is applied to gate of JFET the depletion region width

None of these

is wider near the source and tapers near the drain.

is uniform in the channel.

is wider near the drain and tapers near source.

TRUE ANSWER : ?
YOUR ANSWER : ?

Three difference Q points are shown on a load line. The upper Q point represents the

intermediate current gain.

cutoff point.

minimum current gain.

maximum current gain.

TRUE ANSWER : ?
YOUR ANSWER : ?

When Semiconductor materials is heated its resistance

None of these

remains constant

increases

decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

In a N-type semiconductor material electrons are ....................

Majority charge carriers

High charge carriers

Minority charge carriers

Low charge carriers

TRUE ANSWER : ?
YOUR ANSWER : ?

When a reverse bias is applied to a diode, it will

raise the potential barrier.

increases the majority carrier an electric current greatly.

lower the potential barrier.

none of these.

TRUE ANSWER : ?
YOUR ANSWER : ?

If the emitter resistor is open, the collector voltage is

high.

unknown.

low.

unchanged.

TRUE ANSWER : ?
YOUR ANSWER : ?

The depletion region of a pn junction is one, that is depleted of

mobiles charges.

atoms.

velocity of the carriers.

immobile charges.

TRUE ANSWER : ?
YOUR ANSWER : ?

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