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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
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Question # 1
The values 1 and 0 are designated as:
Question # 2
To display a digit of EIGHT, the number of ON LED'S are:
Question # 3
Electric intensity at a place due to a charged conductor is a
Question # 4
To make an LED, it is impreacticable to use:
Question # 5
The number of input terminals of an op-amp is:
Question # 6
Whenever a covalent bond breaks, it creates:
Question # 7
Electric field strength is defined as
Question # 8
Depletion region contains:
Question # 9
A diode which can turn its current ON and OFF in nono seconds is called:
Question # 10
To turn the transistor OFF, the base current is set:
Question # 11
In the text book, the transistor amplifier circuit is a:
Question # 12
The number of LED'S needed to display all the digits is:
Question # 13
The value of LDR depends upon intensity of:
Question # 14
To designate the voltage as low or 0 by a logic gate, the specified minimum value is:
Question # 15
The electric field lines start from
Question # 16
By placing a dielectric in between the charges, the electrostatic force between them
Question # 17
If the distance between two charges is doubled, the force between them will become
Question # 18
The concept of electric field theory was introduced by
Question # 19
If both the inputs given to a gate ae 1 such that the output is 0, then it is:
Question # 20
The SI unit of charge is
Question # 21
In full wave rectification, simultaneous action is that:
Question # 22
Electric lines of force
Question # 23
In describing function of digital systems, 1 represents:
Question # 24
Michael Faraday is known by his work on
Question # 25
.Depletion region contains:
Question # 26
The value of relative permittivity of different dielectrics are
Question # 27
A potential barrier of 0.7V exists across p-n junction made from:
Question # 28
A transistor has:
Question # 29
In AND gate, the output is 1 if:
Question # 30
Origin of the electric and the gravitational forces
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