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

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

Question # 2

The magnetic field inside a solenoid can be increased by:

Question # 3

Method "lamp and scale arrangement" used to measure the

Question # 4

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 5

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

Question # 6

To convert galvanometer into ammeter we connect

Question # 7

The torque per unit twist of coil is called

Question # 8

The SI unit of magnetic flux is.

Question # 9

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 10

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

Question # 11

Weber is a unit of

Question # 12

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 13

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

Question # 14

The sources of magnetic field are

Question # 15

The SI unit of flux density is.

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
2 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
3 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
4 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
5 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
6 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
7 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
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 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
10 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these

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