Q. The critical frequency of the circuit of figure is

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Q. Find resistance RB to bring transistor to threshold of saturation VCB = 0, VBE = 0.7 V, a = 0.96

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Q. In figure ID = 4 mA. Then VGS =

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Q. In following circuit, RB will be if VCC = 10 V, VS = 2 V, RC = 5 kΩ, RS = 90 kΩ, β = 50, ICE = 0, VCEsat = 0.1 V

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Q. In following figure, what will be R1 and R2 for maximum symmetrical swing if VCSat ≈ 0. Given that RE = 200 Ω, RC = 400 Ω, VCC = 20 V, β = 99

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Q. Assertion (A): The circuit in figure produces repetitive narrow pulses when input is fed with sine or triangular waveform having peak value more than + V

Reason (R): The high gain op-amp produces voltages at two levels. If input is more than + V, the output is + 15 V otherwise the output is - 15 V.

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Q. For CE amplifier of figure, the slope of ac load line is

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Q. A non-inverting op-amp summer is shown in figure, the output voltage V0 is

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Q. In figure if C is replaced by short circuit then RB will be

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Q. In the circuit figure LED will be on when v1 is

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Q. Figure shows a portion of linear v - i characteristics of diode. If applied voltage is + 6 V, the current will be

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Q. In figure the zener current

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Q. In the circuit of figure the diode

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Q. In the circuit of figure, v1 = v2 = 10 V. Then

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Q. The inverting op-amp shown in the figure has an open loop gain to 100. The closed loop given Vo/Vs is

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Q. Figure shows a self bias circuit for FET amplifier, ID = 4 mA. Then IS =

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Q. In the CE equivalent circuit of figure, the voltage gain is

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Q. In the circuit shown in figure, RC = 10k, RE = 150Ω, β = 100, I = 1 mA. The value of A = Vo/Vs, will be

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Q. Which of the following is correct?

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Q. In figure, ID = 4 mA. Then VD =

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