Exam Questions Papers

Question: Consider a 565 PLL with RT = 10 kΩ and CT = 0.01 μF. What is the output frequency of the VCO?
[A].

10 kHz

[B].

5 kHz

[C].

2.5 kHz

[D].

1.25 kHz

Answer: Option A

Explanation:

No answer description available for this question.

Question: Consider the following statements about a good power supply:
[A].

1, 2 and 3

[B].

2 only

[C].

3 only

[D].

2 and 3 only

Answer: Option D

Explanation:

No answer description available for this question.

Question: Consider the following statements:The bias stability of an emitter-bias amplifier circuit improves by
[A].

1 and 2

[B].

2 and 3

[C].

3 and 4

[D].

4 and 5

Answer: Option A

Explanation:

No answer description available for this question.

Question: Consider the following statements, regarding an OP AMP:
[A].

1 only

[B].

2 and 3 only

[C].

2 and 4 only

[D].

1, 2, 3 and 4

Answer: Option D

Explanation:

No answer description available for this question.

Question: Consider the following statements regarding the class-B power amplifiers (Complementary symmetry type):
[A].

1, 2 and 3

[B].

1, 2 and 4

[C].

1, 3 and 4

[D].

2, 3 and 4

Answer: Option C

Explanation:

No answer description available for this question.

Question: Consider the following statements:To draw a.c. equivalent circuit of a transistors, all
[A].

2 and 4

[B].

1 and 2

[C].

1 only

[D].

3 and 4

Answer: Option C

Explanation:

No answer description available for this question.

Question: Why npn-transistors are preferred over pnp-transistors?
[A].

Leakage current in npn-transistors is less than pnp-transistors

[B].

Mobility of majority carrier in npra-transistors is greater than the mobility of majority carrier in pnp-transistors

[C].

Bias voltage required in npn is less than in/wp-transistors

[D].

Bias voltage required in npn is greater than in pnp-transistors

Answer: Option B

Explanation:

No answer description available for this question.

Question: Consider the following:
[A].

1 and 2

[B].

1 and 3

[C].

2 and 4

[D].

3 and 4

Answer: Option A

Explanation:

No answer description available for this question.

Question: Assertion (A): As the length of the resonant antenna is increased, the number of lobes increases and the direction of the major lobes is closer and closer to the direction of the diode.Reason (R): As the length increases, the current distribution along the wire becomes more and more uniform.
[A].

Both A and R are individually true and R is the correct explanation of A

[B].

Both A and R are individually true but R is not the correct explanation of A

[C].

A is true but R is false

[D].

A is false but R is true

Answer: Option C

Explanation:

No answer description available for this question.