24. A)With reference to the following circuit, draw the load line and.mark the Q point of a Silicon

25.

26.

27.

28.

transistor operating in CE mode based on the following data (0 = 80, Rs= 47kQ, RL=
1kQ,neglect 1೧೫೦)
(6)

` 8) Sketch the forward characteristics of a SCR. Explain the importance of Holding current in a

SCR. (4)
With a neat diagram draw structure of n channel E-MOSFET and explain different regions of
operation. (10)

Answer any 2 complete questions each having 10 marks

A)Draw the circuit of a bridge rectifier and explain its working. (5)
8) Derive the expressions for Vins, Vac, Ripple factor, Rectification Efficiency, Peak Inverse
Voltage. (5)
A) With the help of suitable block diagram, discuss the working principle of the electronic
device which is used in laboratories for. generating the various standard waveforms. (5)
B) Draw the block diagram of DC power supply and list out the functions of each block. (5)
With neat schematic diagram, explain the working of a CRO. List its applications. (10)