10.

11.

12.

13.

14.

15.

16.

17,

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19.

Emitter follower is used for
(A) current gain (B) voltage gain
(C) impedance matching (D) none of the above

Which among the following does not belong to the category of LC oscillators?

(A) Hartley oscillator (B) Colpitts oscillator
(C) crystal oscillator (D) none of the above

The channel of a JFET is between the
(A) input and output (B) gate and drain
(C) gate and source (D) drain and source

Choose the correct statement

(A) MOSFET is a unipolar, voltage controlled, two terminal device
(B) MOSFET is a bipolar, current controlled, two terminal device
(C) MOSFET is a unipolar, voltage controlled, three terminal device
(D) MOSFET is a bipolar, current controlled, three terminal device

What are the working regions of a unijunction transistor?

(A) Negative Resistance region (B) Saturation region
(C) Linear region (D) Cutoff region

Which of the following is/are optoelectronic devices?

(A) photodiodes (B) light emitting diodes
(C) solar cells (D) all of the above

An optocoupler provides between input and output

(A) induction (B) amplification

(C) isolation (D) oscillation

Clamping is the process of introducing a/an

(A) dc level to a ೮೦ signal (B) dc level to an ac signal
(C) ac level to a 06 signal (D) ac level to an ac signal
A square wave oscillator 15 a/an __ multivibrator.

(A) astable (B) monostable

(C) bistable (D) none of the above

The Op-amp can amplify പ

(A) ೮೦ signals only (B) ac signals only
(C) both de and ac signals (D) none of the above

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