ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

A beam of electrons is provided by an

Question # 2

A resistance used in voltmeter is called

Question # 3

The magnetic field in the middle of a solenoid due to current is

Question # 4

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 5

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 6

The current is measured in

Question # 7

The strength of magnetic field around the current conductor is

Question # 8

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 9

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

Question # 10

Resistance is measured in

Question # 11

How many number of anodes used in electron gun

Question # 12

A solenoid is a coil of wire which is:

Question # 13

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 14

The unit of flux density is also given by

Question # 15

The SI unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
2 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
3 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
4 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
5 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
6 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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
7 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
8 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)
9 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
10 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant

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