೫112275 Pages: 2

PART C
Answer any 2 complete questions each having 10 marks

26. With the help of block diagram, explain the principle of (a) analog multimeter

(b) digital multimeter.
27. Design a two level clipping circuit that clips ೩ sinusoidal signal ௦1 116112. 10V peak so

(5+5)

that output is flat for 90% of input cycle time. Assume ideal diodes. (10)
28. (a) How CRO can be used to measure phase angle between two signals? (3)
(0) Design a simple zener regulator to regulate an input varying from 1010 171% to 6%

(7)

delivering an output current of 30mA.

Page 2 of 2