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 unit of magnetic flux is

Question # 2

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

Question # 3

if the field is directed along the normal to the area, then flux is:

Question # 4

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

Question # 5

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

Question # 6

The sources of magnetic field are

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 11

Amperean path is a:

Question # 12

Weber is a unit of

Question # 13

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

Question # 14

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 # 15

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
3 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
4 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
5 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
6 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
7 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
8 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
9 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
10 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium

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