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MCQ's Test For ECAT Physics Chapter 14 Electromagnetism
Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 14 Electromagnetism
00:00
Question # 1
Method "lamp and scale arrangement" used to measure the
Question # 2
The SI unit of flux density is
Question # 3
A long wire wound tightly on a cylindrical core is called:
Question # 4
A shunt resistance parallel to the galvanometer is used to convert it into
Question # 5
'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
Question # 6
The vector representation of force experience give the direction of
Question # 7
Total number of turns on 0.15 m length solenoid is 300. the value of n is:
Question # 8
The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
Question # 9
A charged particle moving at right angle to the magnetic field will experience
Question # 10
The current is measured in
Question # 11
The magnetic field outside the solenoid due to current is
Question # 12
The voltage increases linearly with
Question # 13
Electron gun consist of
Question # 14
Weber is a unit of
Question # 15
F = I(L x B) is a
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ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A resistance used in voltmeter is called |
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
|
| 2 | 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
|
| 3 | The most suitable material for permanent magnet is |
A. cobalt
B. iron
C. steel
D. alaminium
|
| 4 | The CRO deflects the beam of electrons, when they passes through uniform |
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
|
| 5 | if the field is directed along the normal to the area, then flux is: |
A.
Maximum
B.
Equal to zero
C.
Equal to BA
D.
Minimum |
| 6 | How many number of anodes used in electron gun |
A. one
B. two
C. three
D. six
|
| 7 | Magnetic lines of force: |
A.
Cannot
intersect at all
B.
Intersect at infinity
C.
Intersect within magnet
D.
Intersect at Neutral Point |
| 8 | 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
|
| 9 | The working of galvanometer depends upon torque exerted on a current carrying coil in |
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
|
| 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
|
Test Questions