Exercise: Analog Electronics

Questions for: Analog Electronics

Rise time in a transistor is change from
A:
10% of its final value to 90% of its final value
B:
0% of its final value to 90% of its final value
C:
10% of its final value to 100% of its final value
D:
10% to its final value to 50% of its final value
Answer: A
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A bypass capacitor produces
A:
dc ground
B:
ac ground
C:
both dc and ac ground
D:
none of the above
Answer: B
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The parameter β of a BJT change by 300%. If self bias is used in the amplifier using this BJT, the quiescent value of IC and VCE remain almost the same.
A:
True
B:
False
C:
D:
Answer: A
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Assertion (A): A class C amplifier can also be used as frequency multiplier

Reason (R): When narrow current pulses drive a resonant circuit the output can be a near perfect sine wave

A:
Both A and R are correct and R is correct explanation for A
B:
Both A and R are correct but R is not correct explanation for A
C:
A is correct R is wrong
D:
A is wrong R is correct
Answer: B
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Oscillation frequency in Wein bridge oscillator is
A:
B:
C:
f = 2p CR
D:
Answer: A
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