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

F = I(L x B) is a

Question # 2

Resistance is measured in

Question # 3

Which is modified form of galvanometer

Question # 4

magnetic field is a:

Question # 5

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

Question # 6

The pointer of a magnetic compass:

Question # 7

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 8

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

Question # 9

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 10

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

Question # 11

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 12

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 13

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

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

Current is measured in

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
2 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
3 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
4 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
5 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
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 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
8 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
9 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
10 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

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