16.

17,

18.

19.
20.

21.

25.

Design a circuit to obtain the following transfer

What are the advantages of a SMPS over a linear
voltage regulator?

What is the need for electron gun in CRO?

Draw the block diagram of digital Multimeter.

A sinusoidal waveform is displayed on CRO screen with one full cycle in two divisions. If the
time-base knob is 0.5 ms position, find the frequency of the waveform.

PART B
Answer any 4 complete questions each having 10 marks
a) Discuss the working and various parameters of relays with relevant sketches. (5)
b) Explain the constructional features of metal film resistor. (5)
a)Describe the construction of a commercial electrolytic capacitor. (5)
b)Which diode is called tuning diode and why? (5)
a) Draw the circuit diagram of an RC coupled amplifier. (5)
b) Give reason for the drop in gain in the frequency response of RC coupled amplifier at lower
frequencies and higher frequencies. (5)
a)Why stabilization of operating point is necessary in a transistor? (3)
b) List the main differences between a FET and a BJT. (3)

c)Determine the ‏عل‎ bias voltage
VCE and the current IC for the
voltage divider configuration shown
in the following figure:

(4)

Give the construction details of an
FET and qualitatively analyse, how
the current flow from drain to
source is controlled by the voltage
applied at the gate terminal. (10)