ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 2

Magnetic induction is also called as:

Question # 3

Magnetic flux and flux density are related by

Question # 4

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 5

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 6

The current is measured in

Question # 7

Which is modified form of galvanometer

Question # 8

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 9

The CRO deflects the beam of electrons, when they passes through uniform

Question # 10

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 11

The voltage increases linearly with

Question # 12

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 13

The direction of lines of force depends upon the direction of

Question # 14

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 15

The force experienced by charged particle is maximum, if it moves

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
2 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
3 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
4 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
5 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
6 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
7 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
8 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
9 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
10 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium

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