ECE :: Analog Electronics
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In figure, VEB = 0.6 V, β = 99. Then VC and IC are
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The input impedance of op-amp circuit of figure is
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In a BJT circuit a pnp transistor is replaced by npn transistor. To analyse the new circuit
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To protect the diodes in a rectifier and capacitor input filter circuit it is necessary to use
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In a CE amplifier the input impedance is equal to the ratio of
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For a system to work, as oscillator the total phase shift of the loop gain must be equal to
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An amplifier has a large ac input signal. The clipping occurs on both the peaks. The output voltage will be nearly a
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The transistor of following figure in Si diode with a base current of 40 μA and ICBO = 0, if VBB = 6V, RE = 2 kΩ and β = 90, IBQ = 20 μA then RB =
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In the amplifier circuit of figure hfe = 100 and hie = 1000 Ω. The voltage gain of amplifier is about
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9.3 V.
= -100 mV.
for oscillation 
AB = 1 ∠0° or 360°.
.
.