Electronics and Communication Engineering - Analog Electronics

6. 

A Hartley oscillator uses

A. a tapped capacitor
B. a tapped inductor
C. a tapped inductor for inductive feedback
D. none of the above

Answer: Option C

Explanation:

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7. 

Aperture circuit produces __________ in sample hold circuit.

A. the total sampling time
B. delay between the instance at which hold command is initiated and the instance at which O/P starts tracking I/P
C. the time taken by O/P to settle within the specified 1% error band, that of the I/P
D. time required by holding capacitor to reach upto the level close to input

Answer: Option B

Explanation:

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8. 

A clipper

A. adds a dc component to the input signal
B. removes signal voltages above or below a specified value
C. both (a) and (b)
D. either (a) or (b)

Answer: Option B

Explanation:

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9. 

In a rectifier circuit the filter capacitance is increased. Then the ripple will

A. increase
B. decrease
C. remain the same
D. either (a) or (b)

Answer: Option B

Explanation:

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10. 

The circuit in figure is

A. positive clamper
B. negative clamper
C. positive peak clipper
D. negative peak clipper

Answer: Option A

Explanation:

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