ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

The unit of magnetic flux is

Question # 2

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

Question # 3

In the formula B= µ̻ nl, the symbol n denotes:

Question # 4

A solenoid is a coil of wire which is:

Question # 5

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

Question # 6

A voltmeter is used to measure the

Question # 7

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

Question # 8

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

Question # 9

A field is uniform and much stronger:

Question # 10

The torque per unit twist of coil is called

Question # 11

A current carrying conductor sets up its own:

Question # 12

Magnetic induction is also called as:

Question # 13

Flurescent screen is a screen where visible spot

Question # 14

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 15

The SI unit of flux density is.

Question # 16

Magnetic flux and flux density are related by

Question # 17

The sources of magnetic field are

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

magnetic field is a:

Question # 22

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 23

Amperean path is a:

Question # 24

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:

Question # 25

Current is measured in

Question # 26

The pointer of a magnetic compass:

Question # 27

In a moving coil galvanometer, the deflecting couple depends upon

Question # 28

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 29

The most suitable material for permanent magnet is

Question # 30

A beam of electrons is provided by an

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
2 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
3 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
6 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
7 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
8 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
9 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
10 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance

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