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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 total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
Question # 2
The gavanometer constant of a moving coil galvanometer is given by
Question # 3
The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
Question # 4
A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
Question # 5
For the conversion of galvanometer into voltmeter, we connect a
Question # 6
'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
Question # 7
F = I(L x B) is a
Question # 8
Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
Question # 9
41 The force experience, when proton projected in a magnetic field with velocity 'v' is
Question # 10
Avo-meter is used of measure the
Question # 11
A shunt resistance parallel to the galvanometer is used to convert it into
Question # 12
The SI unit of magnetic flux is.
Question # 13
The SI unit of magnetic induction is
Question # 14
NmA-1 is commonly called:
Question # 15
The strength of magnetic field around the current conductor is
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ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is |
A. minimum
B. maximum
C. zero
D. none of these
|
| 2 | A long wire wound tightly on a cylindrical core is called: |
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
|
| 3 | A current carrying conductor sets up its own: |
A.
Electric field
B.
Nuclear field
C.
Magnetic field
D.
Both
(A) and (C) |
| 4 | A solenoid is a coil of wire which is: |
A.
Short, loosely wound, cylindrical
B.
Long, tightly wound,
spherical
C.
Long, loosely wound,
cylindrical
D.
Long,
tightly wound, cylindrical |
| 5 | Centripetal force for electron is given by |
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
|
| 6 | 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
|
| 7 | Ammeter is used to measure |
A. voltage
B. resistance
C. voltage and current
D. current
|
| 8 | Tesla is the unit of |
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
|
| 9 |
Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is: |
A. BACosѲ
B. Zero
C. BA
D. BA sinѲ
|
| 10 | Electron gun consist of |
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
|
Test Questions