# What is the power amplifier?

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What is the power amplifier?

## Related questions

An amplifier has input power of 2 microwatts. The power gain of the amplifier is 60 dB. The output power will be

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A differential amplifier has a differential gain of 28000 and CMRR is 60 dB. What will be the value of common mode gain? A) Ac = 0.125 B) Ac = 0.33 C) Ac = 3 D) Ac = 28

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A differential amplifier has a differential gain of 20,000, CMRR : 80 dB. The common mode gain is given by

An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is  (1) 141 (2) 92.3 (3) 9.23 (4) 1.41

The effect of a finite gain of an operational amplifier used in an integrator is that (A) it would not integrate (B) the slope of the output will vary with time (C) the final value of the output voltage will reduce (D) there will be instability in the circuit

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State the need of cascade amplifier and draw circuit diagram of 2-stage direct coupled amplifier.

Draw the single stage RC coupled amplifier circuit and explain its’s operation.

List the advantages of RC coupled amplifier.

State the need of cascade amplifier.

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The gain of an ideal amplifier must be

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Options: A) WATT B) AMPERE C) VOLTS D) OHM

What is the choice of size and number of generator units in interconnected power system?

What is the Power Supply specification for 8085AH microprocessor? A) Single +5V supply with 10% voltage margins B) Dual +5V supply with 10% voltage margins C) Single +10V supply with 5% voltage margins D) Dual +5V supply with 5% voltage margins

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

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