ANALOG ELECTRONICS QUIZ

The ÃŽÂ² of a transistor may be determined directly from the curve plotted between

VCE and IE for constant IB.

VCE and IC for constant IE.

VCE and IC for constant IB.

VBE and IE for constant VCE.

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The per unit impedance of a synchorous machine is 0.242. If base voltage is increased by 1.1 times, then per unit value will be

0.242.

0.266.

0.220.

0.200.

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The input offset electric current is usually

less than the input bias current.

unimportant when a base resistor is used.

equal to zero.

less than the input offset voltage.

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In an E only MOSFET, drain electric current starts only when VGS (th) is

positive.

zero.

negative.

greater than VGS (th).

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Why holes are not created in a metal ?

None of these

Both 1 & 2

The forbidden band is missing

The conduction band and valance band are overlapped

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Optocouplers combine

Infrared light emitting diode and a silicon photo transistor.

SITs and BJTs.

IGBTs and MOSFETs.

Power transistor and silicon transistor.

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What is the majority carriers in "N" type material ?

None of these

Protons

Holes

Electrons

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For Germanium pn junction, the maximum value of barrier potential is

1.6V

0.7V

0.3V

1.5V

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The arrow direction in diode symbol indicates

direction of hole flow.

none of these.

direction of electron flow.

opposite to the direction of hole flow.

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Junction field effect transistors (JFET) contain how many diodes?

4.

1.

2.

3.

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