ANALOG ELECTRONICS QUIZ

Optocouplers combine

Power transistor and silicon transistor.

SITs and BJTs.

IGBTs and MOSFETs.

Infrared light emitting diode and a silicon photo transistor.

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The conduction loss verses device current characteristics of power MOSFET in best approximately by

a parabola.

a rectangular hyperbola.

an exponentially decaying function.

a straight line.

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If the series resistance increases in an unloaded zener regulator, the zener current

increases.

equals the voltage divided by the resistance.

decreases.

stays the same.

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Depending upon the switching recovery time and on state drop, the power diodes are types

Fast recovery, Schottky.

General purpose, fast recovery.

General purpose, fast recovery and schottly.

None of these.

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If the load resistance increases in a zener regulator, the zener current

equals the source voltage divided by series resistance.

decreases.

stays the same.

Increases.

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The main factor which makes a MOSFET likely to breakdown during the normal handling

both (A) and (C).

very low gate capacitance.

high input resistance.

high leakage current.

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In CB configuration, the output V-I characteristics of a transistor are drawn by taking

VCB versus IB for constant IE.

VCE versus IC for constant IE.

VCB versus IB for constant IE.

VCB versus IC for constant IE.

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A U shaped, opposite-polarity material built near a JFET-channel center is called the

block.

drain.

gate.

heat sink.

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The gate controls

the width of the channel.

all of them.

the drain current.

the gate voltage.

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If a transistor operates at the middle of the load line, a decrease in the current gain will move the Q point

up.

off the load line.

down.

nowhere.

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