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 SI unit of magnetic flux is

Question # 2

A beam of electrons is provided by an

Question # 3

Weber is a unit of

Question # 4

Tesla is the unit of

Question # 5

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

Question # 6

A voltmeter is used to measure the

Question # 7

magnetic field is a:

Question # 8

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 9

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 # 10

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 11

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

Question # 12

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

Question # 13

The CRO deflects the beam of electrons, when they passes through uniform

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
2 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
3 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
4 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
5 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
6 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
7 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
8 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
9 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
10 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these

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