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000BE10104121804

the new temperature. Assume that 1] = 2 for both cases.

OR
Explain the piece wise linear model of a diode. Also draw the V-I
characteristics
Explain how a varactor diode can be used as a variable capacitor?

Module III

Define © and 8 of a transistor. Derive the relation between two.
In Common Emitter input characteristics why does the Vgg versus Ip curve
move outwards for higher values of Vcr?

OR
Draw and explain the input and output characteristics of an NPN transistor in
common base configuration

Module IV
Explain the structure and working of an enhancement type MOSFET with its V-

I characteristics
OR
Explain with relevant figures the structure and characteristics of SCR and
draw the two transistor model of the same.
Module V
Describe with circuit diagram and waveform the working of a full wave centre
tapped rectifier.
Define rectification efficiency and peak inverse voltage.
OR
Draw and explain the circuit diagram, output waveform காம்‌ transfer
characteristics of a double clipper with clipping levels at 3Vand -5V, if an input
sine wave of peak to peak voltage of 20V is applied.
Module VI
Explain the principle of operation of an analog multimeter.
Compare analog and digital multimeter
OR
Explain the need of a saw tooth voltage to display a waveform on a CRO.

Draw and explain the block diagram of a function generator.

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