This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Class D Amplifiers”.
1. For an ideal class D amplifier, what time is required in transitioning between states?
2. Which of the following is an example for the application of class D amplifier?
c) Pulse generator
3. Why a class D amplifier is called as switching amplifier?
a) Because it consists of a transistor
b) Because of high power
c) Because of less noise effect
d) Because of binary switch
4. Which of the following is true about class D amplifier?
a) Its efficiency is very less
b) It can be made to work as bulb
c) It is big in size
d) It operates on lesser frequently
5. MOSFET class D amplifier is more advantageous than BJT class D amplifier.
6. Why the cost of MOSFET based power amplifier is less?
a) High impedance
b) Low capacitance
c) Low power dissipation
d) Lesser in size
7. Efficiency of class D amplifier____________
8. Which of the following is true about MOSFET class D amplifier?
a) It has infinite gain
b) It is less stable
c) It is less advantageous
d) It dissipates less heat
9. What is the conduction angle of class D amplifier?
10. Why filters are required in class D amplifier?
a) Output is completely dependent on the lower frequency spectrum
b) To increase the complexity
c) To obtain only lower frequency
d) To nullify noise