Analog Electronics - Study Mode

Show All Answers

[#91] The MOSFET switch in its on-state may be considered equivalent to:

(A) Resistor

(B) Capacitor

(C) Inductor

(D) Battery

Correct Answer

(B) Capacitor

[#92] The Zener diode in the regulator circuit shown in the figure has a Zener voltage of 5.8 volts and a Zener knee current of 0.5 mA. The maximum load current drawn from this circuit ensuring proper functioning over the input voltage range between 20 and 30 volts, is

(A) 23.7 mA

(B) 14.2 mA

(C) 13.7 mA

(D) 24.2 mA

Correct Answer

(C) 13.7 mA

[#93] A power transfer used in class A amplifier has zero signal power dissipation of 10 Watts. If the AC power is 4 W. Calculate collector efficiency.

(A) 60%

(B) 30%

(C) 90%

(D) 40%

Correct Answer

(D) 40%

[#94] With reference to the negative feedback voltage - series configuration, which of the following statements is/are correct? 1. Bandwidth increases. 2. Non-linear distortion decreases. Select correct answer.

(A) Only 1

(B) Only 2

(C) Both 1 and 2

(D) Neither 1 nor 2

Correct Answer

(C) Both 1 and 2

[#95] What is the output voltage V 0 of the above circuit?

(A) -11 V

(B) 6 V

(C) 11 V

(D) -6 V

Correct Answer

(A) -11 V