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

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 2

Strength of magnetic field is measured in SI units, in:

Question # 3

The magnetic field outside the solenoid due to current is

Question # 4

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 5

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 # 6

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 7

The voltage increases linearly with

Question # 8

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 9

In the expression of force experienced by electron, the direction of both v and B are

Question # 10

Avo-meter is used of measure the

Question # 11

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

Question # 12

Which one of the following relations is correct?

Question # 13

Tesla is the unit of

Question # 14

In a moving coil galvanometer, the deflecting couple depends upon

Question # 15

The direction of lines of force depends upon the direction of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
2 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
3 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
4 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
5 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
6 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
7 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
8 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
9 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
10 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these

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