(Q1-Q.6) An amplifier is measured to have an internal resistance of 10 kΩ, voltage gain of 100V/V and output resistance of 100 Ω. Also, when a load resistance of 1 kΩ is connected between the output resistance if found to decrease to 8 kΩ. If the amplifier is fed with the signal source having an internal resistance of 2 kΩ, then
Q. Find Gm.
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(Q.7-Q.10) The circuit shown below is a small sine wave signal with average zero and transistor ß =
Q. Find the value of R(E) to establish a dc emitter current of about 0.5 mA.
Find R(C) to establish a dc collector voltage of about +5V.
For R (L) = 10 kΩ and transistor Ro = 200 kΩ, determine the overall voltage gain.
3 videos|33 docs|64 tests
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3 videos|33 docs|64 tests
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