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

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

Question # 2

The SI unit of magnetic flux is.

Question # 3

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

Question # 4

The SI unit of flux density is

Question # 5

Ammeter is used to measure

Question # 6

The unit of flux density is also given by

Question # 7

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

Question # 8

The direction of lines of force depends upon the direction of

Question # 9

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 10

The vector representation of force experience give the direction of

Question # 11

The SI unit of magnetic induction is

Question # 12

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 13

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

Question # 14

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

Question # 15

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
2 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
3 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
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
A. n/AL
B. Al/n
C. nAL
D. nA/L
5 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
6 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
7 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
8 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
9 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
10 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°

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