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 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 # 2

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 # 3

The most suitable material for permanent magnet is

Question # 4

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 5

The CRO is used for displaying the waveform of a given

Question # 6

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

Question # 7

Current is measured in

Question # 8

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

Question # 9

The SI unit of flux density is.

Question # 10

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 11

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 12

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

Question # 13

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 14

The voltage increases linearly with

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
2 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
3 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
4 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
5 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
6 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
7 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
8 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
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 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

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