ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 3

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

Question # 4

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

Question # 5

Tesla is the unit of

Question # 6

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 7

The SI unit of magnetic permeability is

Question # 8

The strength of magnetic field around the current conductor is

Question # 9

Magnetic lines of force:

Question # 10

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

Question # 11

The current sensitivity of the galvanometer is

Question # 12

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 # 13

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

Question # 14

The SI unit of magnetic flux is

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 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
2 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
3 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
4 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
5 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
6 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
7 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
8 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
9 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
10 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these

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