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MCQ's Test For ECAT Pre General Science Physics Chapter 18 Electronics
Try The MCQ's Test For ECAT Pre General Science Physics Chapter 18 Electronics
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 18 Electronics
00:00
Question # 1
A digital system deals with quantities which has discrete values:
Question # 2
An LED emits light when it is:
Question # 3
An electronic computer is basically a vast arrangement of electronic switches which are made from
Question # 4
The concept of electric field theory was introduced by
Question # 5
Truth table of logic function:
Question # 6
A potential barrier of 0.7V exists across p-n junction made from:
Question # 7
The intensity at a point due to a charge is inversely proportional to
Question # 8
Majority charge carriers in the p-region of p-n junction are:
Question # 9
In AND gate, the output is 1 if:
Question # 10
Electric field strength is defined as
Question # 11
A hole in p-type my be due to:
Question # 12
In the text book, the transistor amplifier circuit is a:
Question # 13
The electric field lines start from
Question # 14
Electric intensity at a place due to a charged conductor is a
Question # 15
Silicon is one of the mot commonly used:
Question # 16
If both the inputs given to a gate ae 1 such that the output is 0, then it is:
Question # 17
To turn the transistor OFF, the base current is set:
Question # 18
In describing function of digital systems, 1 represents:
Question # 19
The number of LED'S needed to display all the digits is:
Question # 20
The SI unit of charge is
Question # 21
Op-amp has been discussed as comparator of:
Question # 22
Inverter is the name given to:
Question # 23
If the distance between two charges is doubled, the force between them will become
Question # 24
Whenever a covalent bond breaks, it creates:
Question # 25
In reverse-biased p-n junction, the reverse current is due to flow of:
Question # 26
The values 1 and 0 are designated as:
Question # 27
When transistors are used in digital circuits they usually operate in the
Question # 28
To display a digit of EIGHT, the number of ON LED'S are:
Question # 29
Origin of the electric and the gravitational forces
Question # 30
The value of LDR depends upon intensity of:
Top Scorers Of ECAT Pre General Science Physics Chapter 18 Electronics MCQ`s Test
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W Waleed Ahmed 26 - Feb - 2023 10 Min 39 Sec 90/120 -
H Hafsa Ahmed 08 - Apr - 2021 10 Min 50 Sec 65/120 -
M Malik Farhan 23 - May - 2021 00 Min 56 Sec 0/120
Test Questions
