Electronics and Communication Engineering - Analog Electronics

41. 

A CE amplifier is the most common BJT amplifier.

A. True
B. False

Answer: Option A

Explanation:

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42. 

The main drawback in the performance of shunt peaked wide band amplifier is

A. two low gain at low frequency
B. poor phase response
C. reduce frequency at middle frequency
D. that the maximum gain of the stage is small

Answer: Option B

Explanation:

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43. 

A generator with an internal resistance of 600 Ω drives an amplifier whose input resistance is 400 Ω. The generator's open circuit voltages is 1 mV; the amplifier develops 100mV across an 8kΩ load. The current amplification is

A. 2.5
B. 12.5
C. 25
D. 125

Answer: Option B

Explanation:

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44. 

In a CE amplifier circuit

A. Q point must lie on both dc and ac load lines
B. Q point lies on dc load line
C. Q point lies on ac load line
D. Q point lies may or may not lie on both dc and ac load lines

Answer: Option A

Explanation:

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45. 

In a push pull circuit the two transistors are

A. both pnp
B. both npn
C. one pnp and other npn
D. either (a) or (b)

Answer: Option C

Explanation:

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