Analog Electronics - Study Mode

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[#151] In an op-amp, non-inverting terminal is grounded, input is connected to inverting terminal and there is no feedback resistance. The output is

(A) AV in

(B) -AV in

(C) A/V in

(D) '-A/V in

Correct Answer

(B) -AV in

[#152] What are the output voltage levels for the given circuit? (Assume Si diode)

(A) -16 V, 3.3 V

(B) 16 V, 3.3 V

(C) 16 V, -3.3 V

(D) -16 V, -3.3 V

Correct Answer

(B) 16 V, 3.3 V

[#153] A bipolar junction transistor is in saturation region. Given V CC = 10 V, R C = 1 kΩ, h FE = 100 and V CEsat = 0.3 V. What is the collector current in saturation?

(A) 10 mA

(B) 9.7 mA

(C) 0 mA

(D) 1 mA

Correct Answer

(B) 9.7 mA

[#154] The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at

(A) 5 Hz

(B) 10 kHz

(C) 1 MHz

(D) 100 MHz

Correct Answer

(A) 5 Hz

[#155] In the Wien bridge oscillator, the 0° phase-shift is met by using lead-lag network and by using.

(A) Inverting op-amp

(B) Non-inverting op-amp

(C) Feedback op-amp

(D) High-gain op-amp

Correct Answer

(B) Non-inverting op-amp