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 e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 2

The current is measured in

Question # 3

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

Question # 4

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 # 5

Lorentz force is defined as

Question # 6

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

Question # 7

The SI unit of flux density is

Question # 8

Tesla is the unit of

Question # 9

The SI unit of magnetic induction is tesla which is equal to

Question # 10

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

Question # 11

The field around a moving charge is called

Question # 12

The pointer of a magnetic compass:

Question # 13

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 14

Avo-meter is used of measure the

Question # 15

The magnetic field outside the solenoid due to current is

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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 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
3 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
4 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
5 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
6 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
7 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
8 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
9 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
10 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these

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