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 SI unit of flux density is.

Question # 2

The gavanometer constant of a moving coil galvanometer is given by

Question # 3

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

Question # 4

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 5

Galvanometer is a device used for the detection of

Question # 6

A galvanometer is an instrument used to

Question # 7

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

Amperean path is a:

Question # 12

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 13

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 14

When current passes through a solenoid coil, it behaves like a

Question # 15

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
2 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
3 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
4 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
5 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
6 The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
7 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
8 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
9 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
10 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)

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