ECAT Pre Engineering Physics Chapter 18 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 18 Electronics Physics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 18 Electronics Physics

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Physics ECAT Pre Engineering Chapter 18 Electronics Physics

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Question # 1

Silicon is one of the mot commonly used:

Question # 2

In full wave rectification, simultaneous action is that:

Question # 3

Improper biasing of a transistor circuit produces

Question # 4

Michael Faraday is known by his work on

Question # 5

Computer chips are made from:

Question # 6

To turn the transistor OFF, the base current is set:

Question # 7

Origin of the electric and the gravitational forces

Question # 8

Inverter is the name given to:

Question # 9

Truth table of logic function:

Question # 10

.Depletion region contains:

Question # 11

If both the inputs given to a gate ae 1 such that the output is 0, then it is:

Question # 12

Most of the electrons in the base of an NPN transistor flow

Question # 13

Electric field strength is defined as

Question # 14

An LED emits light when it is:

Question # 15

The value of relative permittivity of different dielectrics are

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ECAT Physics Chapter 18 Important MCQ's

Sr.# Question Answer
1 Computer chips are made from:
A. Iron
B. Silicon
C. Helium
D. Stontium
2 The number of input terminals of an op-amp is:
A. One
B. Two
C. Three
D. Four
3 An electronic computer is basically a vast arrangement of electronic switches which are made from
A. Resistors
B. Transistors
C. N -type crystals
D. P-Type crystals
4 When transistors are used in digital circuits they usually operate in the
A. Active region
B. Breakdown region
C. Saturation and cutoff regions
D. Linear region
5 A digital system deals with quantities which has discrete values:
A. Two in number
B. One in number
C. Three in number
D. Four in number
6 To designate the voltage as low or 0 by a logic gate, the specified minimum value is:
A. 0.2 volt
B. 0.8 volt
C. 0 volt
D. 2.0 volt
7 In full wave rectification, simultaneous action is that:
A. Two diodes conduct and two do not.
B. One diode conduct and three do not.
C. Three diodes conduct and one does not.
D. All the four diodes conduct
8 Op-amp has been discussed as comparator of:
A. Distances
B. Voltages
C. Velocities
D. Magnetic fields
9 If the distance between two charges is doubled, the force between them will become
A. Double
B. Half
C. Three times
D. One fourth
10 Conversion of A.C. into D.C. is called:
A. Reftification
B. Amplification
C. Electric induction
D. Magnetic induction

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