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

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

Question # 3

Magnetic flux and flux density are related by

Question # 4

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

Question # 5

A voltmeter is used to measure the

Question # 6

A charged particle moving at right angle to the magnetic field will experience

Question # 7

A long wire wound tightly on a cylindrical core is called:

Question # 8

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 # 9

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

Question # 10

CRO deflects the beam of

Question # 11

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

Question # 12

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 13

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

Question # 14

The current sensitivity of the galvanometer is

Question # 15

Avo-meter is used of measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
2 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
3 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
4 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)
5 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
6 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
7 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
8 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
9 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
10 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:
A. -y direction
B. +y direction
C. +z direction
D. -z direction

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