MCQs on Analog Electronics

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01․ In a zener diode shunt voltage regulator, the diode regulates so long as it is kept in ______________________ condition.
forward.
reverse.
loaded.
unloaded.

Under construction.
02․ A transistor series voltage regulator is called emitter follower regulator because the emitter of the pass transistor follows the ________________________ voltage.
output.
input.
base.
collector.

Under construction.
03․ In a bipolar junction transistor the base region is made very thin so that
recombination in base region is minimum.
electric field gradient in base is high.
base can be easily fabricated.
base can be easily biased.

Under construction.
04․ In which mode of BJT operation are both junction forward biased
active.
saturation.
cut off.
reverse active.

Under construction.
05․ In CB configuration, the output V-I characteristics of a transistor are drawn by taking
VCB versus IC for constant IE.
VCB versus IB for constant IE.
VCE versus IC for constant IE.
VCB versus IB for constant IE.

Under construction.
06․ The β of a transistor may be determined directly from the curve plotted between
VCE and IC for constant IB.
VCE and IC for constant IE.
VCE and IE for constant IB.
VBE and IE for constant VCE.

Under construction.
07․ The emitter electric current in a junction with normal bias
is almost equal to the base current.
is equal to the sum of IB and IC.
changes greatly by a small changes in collector bias voltage.
is equal to ICBO.

Under construction.
08․ The arrowhead on the transistor symbol points in the direction of
electron flow in the emitter region.
minority carrier flow in the emitter region.
majority carrier flow in the emitter region.
conventional electric current flow in the emitter region.

Under construction.
09․ The silicon transistor are more widely used than germanium transistors because
they have smaller leakage current.
they have better ability to dissipate heat.
they have smaller depletion layer.
they have larger electric current carrying capacity.

Under construction.
10․ For an NPN transistor in normal bias
only holes cross the collector junction.
only majority carriers cross the collector junction.
the emitter junction has high resistance.
Je is forward biased and Jc is reverse biased.

Under construction.
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