MDCAT Physics mcq test with answers for chapter 14 (Electronics)

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MCAT Physics Chapter 14 Important MCQ's

Sr.#	Question	Answer
1	A PN junction diode cannot be use:	A. As rectifier B. For converting light energy to electrical energy C. For getting light radiation D. For increasing the amplitude of an ac signal
2	The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:	A. Few Ohms B. Mega Ohms C. Few Kilo Ohms D. Micro Ohms
3	The magnitude of potential barrier for Ge is	A. 0.7 v B. 0.3 V C. 7v D. 3 v
4	In a full wave rectifier:	A. DC current is twice that of half wave rectifier B. DC pulses are twice per cycle that of half wave rectifier C. DC voltage is twice that of half wave rectifier D. All are correct
5	A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………	A. 100,000 B. 100 C. 1000 D. 101
6	The efficiency of full wave rectifier is:	A. 25.6% B. 81.2% C. 81.6% D. 71.2%
7	In full wave rectification, the output D.C. voltage across the load is obtainedfor	A. The positive half cycle of input A.C. (C) The complete cycle of input A.C. B. The negative half cycle of input A.C. C. The complete cycle of D. All of the above
8	The power output of a full wave rectifier is:	A. Equal to H.W.R B. Twice of H.W.R C. Half of H.W.R D. Four times of H.W.R
9	The method by which only one half of A.C cycle is converted into direct current is called	A. half wave amplification B. half wave rectification C. Full wave rectification D. full wave amplification
10	The simplest type of rectification known as half wave rectification is obtained by	A. Using a transistor B. Suppressing the harmonics in A.C. voltage C. Suppressing half wave of A.C. supply by using diode D. Using a Coolidge

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MDCAT Physics Chapter 14 MCQ Test With Answer for (Electronics)

MCQ's Test For MDCAT Physics Chapter 14 Electronics MCQ's Test

MDCAT Physics Chapter 14 Electronics MCQ's Test

The junction potential for Germanium is;

The efficiency of half wave rectifier is:

In a full wave rectifier:

The simplest type of rectification known as half wave rectification is obtained by

The diode charactristics curve is plot between

In full wave rectification, the output DC voltage across the load is obtained for.

In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:

The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:

When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:

Gain of operational amplifier is independent of;

A diode as a rectifier converts:

The power output of a full wave rectifier is:

The diodes works on

A non-conducting semiconductor diode is:

In full wave rectification by bridge the number of diodes required are

The magnitude of potential barrier for Ge is

A pulsating DC can be converted into constant voltage by using

For full wave rectification, the minimum number of diodes used is:

A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:

For a normal AC cycle, during T/2 to T the diode act as:

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MCAT Physics Chapter 14 Important MCQ's

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