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

A resistance used in galvanometer to make it voltmeter is called

Question # 2

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 3

Ammeter is used to measure

Question # 4

The SI unit of flux density is

Question # 5

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

Question # 6

The magnetic field outside the solenoid due to current is

Question # 7

The permeability of free space is measured in:

Question # 8

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

Question # 9

Lorentz force is defined as

Question # 10

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

Question # 11

A beam of electrons is provided by an

Question # 12

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

Question # 13

It is customary represent a current flowing towards the reader by a symbol

Question # 14

The unit of magnetic flux is

Question # 15

The SI unit of magnetic flux is

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ECAT Chapter 14 Important MCQ's

Sr.# Question Answer
1 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
2 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
3 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
4 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
5 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
6 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
7 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
8 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
9 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
10 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque

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