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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 10
46.
In an op-amp comparator, the positive or negative output is
saturated
amplifier
unsaturated
any of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
In logarithmic amplifiers, output voltage is equal to
K.log10 (input voltage)
K.loge (input voltage)
input voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
In a series regulated power supply circuit the voltage gain of pass transistor satisfies the condition
Av → ∞
1 << Av → ∞
Av ≈ 1
Av << 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Occasionally a discrete amplifier user RF chokes instead of collector resistors. Such amplifiers are inherently
low pass amplifiers
high pass amplifiers
band pass amplifiers
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
In oscillator circuits the energy feedback to its input terminal from output is
always in phase with the input signal
90° out of phase with the input signal
180° out of phase with the input signal
270° out of phase with the input signal
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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