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

The vector representation of force experience give the direction of

Question # 2

Which is modified form of galvanometer

Question # 3

It is customary represent a current flowing towards the reader by a symbol

Question # 4

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 5

The force acting on a charge moving in a magnetic field

Question # 6

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 7

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 8

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 9

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 10

The permeability of free space is measured in:

Question # 11

The torque per unit twist of coil is called

Question # 12

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

Question # 13

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

Question # 14

A long wire wound tightly on a cylindrical core is called:

Question # 15

Weber is a unit of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
2 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
3 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
4 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
5 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
6 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
7 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
8 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
9 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
10 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1

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