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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
The SI unit of magnetic permeability is
Question # 2
To convert galvanometer into ammeter we connect
Question # 3
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 # 4
'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
Question # 5
Galvanometer is a device used for the detection of
Question # 6
if the field is directed along the normal to the area, then flux is:
Question # 7
Resistance is measured in
Question # 8
The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
Question # 9
A galvanometer is an instrument used to
Question # 10
A resistance used in voltmeter is called
Question # 11
A full-scale deflection is obtained in a galvanometer with a current of few
Question # 12
The magnetic field inside a solenoid can be increased by:
Question # 13
For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
Question # 14
The SI unit of flux density is.
Question # 15
A solenoid is a coil of wire which is:
Top Scorers Of ECAT Physics Chapter 14 Electromagnetism MCQ`s Test
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H Heer 23 - Jan - 2024 00 Min 43 Sec 60/60 -
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P Paris Ali 30 - Jul - 2024 08 Min 52 Sec 45/60
ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A field is uniform and much stronger: |
A.
Inside
a long solenoid
B.
Outside a long solenoid
C.
At the end of a long
solenoid
D.
At the central point of
long solenoid |
| 2 | Magnetic lines of force: |
A.
Cannot
intersect at all
B.
Intersect at infinity
C.
Intersect within magnet
D.
Intersect at Neutral Point |
| 3 | 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
|
| 4 | The SI unit of magnetic flux is |
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
|
| 5 | The sources of magnetic field are |
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
|
| 6 | If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are |
A. n/AL
B. Al/n
C. nAL
D. nA/L
|
| 7 | The force experienced by an electron projected in a magnetic field B with a velocity V is given by |
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
|
| 8 | The SI unit of magnetic induction is |
A. Gauses
B. Tesla
C. Weber
D. Weber2
|
| 9 | 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
|
| 10 | In a moving coil galvanometer, the deflecting couple depends upon |
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
|
Test Questions