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 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

Question # 2

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

Question # 3

The magnetic field inside a solenoid can be increased by:

Question # 4

The unit of magnetic flux is

Question # 5

A current carrying conductor sets up its own:

Question # 6

A resistance used in voltmeter is called

Question # 7

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

Question # 8

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 9

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

Question # 10

Avo-meter is used of measure the

Question # 11

The force acting on a charge moving in a magnetic field

Question # 12

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

Question # 13

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

Question # 14

Which one of the following relations is correct?

Question # 15

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
2 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)
3 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
4 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
5 '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
6 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
7 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
8 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)
9 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
10 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer

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