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	The diode charactristics curve is plot between	A. I & t B. V& t C. V& I D. None
2	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
3	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
4	The diodes works on	A. A.C B. D.C C. both A and B D. None of these
5	A diode as a rectifier converts:	A. A)c into D)c B. D)c into A)c C. Varying D)c current into constant D)c current D. High voltage into low voltage and vice-versa
6	In full wave rectification, the output DC voltage across the load is obtained for.	A. The positive half cycle of input AC only B. The negative half cycle of input AC C. The completes cycle of input AC only D. All of the above
7	When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:	A. Conductor B. Amplifier C. Oscillator D. Rectifier
8	In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:	A. 25 Hz B. 70.7 Hz C. 50 Hz D. 100 Hz
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

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

The efficiency of full wave rectifier is:

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

In a full wave rectifier:

In a full wave rectifier, the diode conducts during

The diode charactristics curve is plot between

A device which convert DC into AC is calleD)

Gain of operational amplifier is independent of;

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

For the same value of resistors the output of non-inverting amplifier compared to the output of inverting amplifier is, (ignoring phase difference)

A pulsating DC can be converted into constant voltage by using

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

The method by which only one half of A.C cycle is converted into direct current is called

The power output of a full wave rectifier is:

The efficiency of half wave rectifier is:

The magnitude of potential barrier for Ge is

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

A diode characteristics curve is a graph plotted between;

A non-conducting semiconductor diode is:

In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is

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MCAT Physics Chapter 14 Important MCQ's

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