A triode used as an amplifier has amplification factor of 15. The AC plate resistance is 10 KΩ and load resistance is 20 KΩ. Find the voltage gain of amplifier.

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MPPKVVCL Jabalpur JE Electrical 16 August 2018 Official Paper
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  1. 10
  2. 20
  3. 5
  4. 15

Answer (Detailed Solution Below)

Option 1 : 10
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Detailed Solution

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The Correct option is 1

Concept

Plate resistance, r p = 10 KΩ.

Load resistance, r L = 20 KΩ.

Amplification factor = 15

Voltage gain = 

Calculation

Voltage gain =  = 10

Additional point

Amplifier

Characteristics  Value
Open loop gain
Input resistance
output resistance 0
offset voltage 0

 

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