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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
Ammeter is used to measure
Question # 2
The direction of lines of force depends upon the direction of
Question # 3
Which is modified form of galvanometer
Question # 4
When the charged particle is projected at right angles to the field, then experienced by it will be:
Question # 5
The SI unit of flux density is.
Question # 6
A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
Question # 7
In the formula B= µ̻ nl, the symbol n denotes:
Question # 8
Tesla is the unit of
Question # 9
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 # 10
'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
Question # 11
Weber is a unit of
Question # 12
When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
Question # 13
Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
Question # 14
The sources of magnetic field are
Question # 15
The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
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ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The magnetic field in the middle of a solenoid due to current is |
A. weak
B. strong and uniform
C. none-uniform
D. zero
|
| 2 | Tesla is the unit of |
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
|
| 3 | 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
|
| 4 | 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: |
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
|
| 5 | The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by |
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
|
| 6 | Ammeter is used to measure |
A. voltage
B. resistance
C. voltage and current
D. current
|
| 7 | 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
|
| 8 |
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
|
| 9 | Weber is a unit of |
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
|
| 10 | The SI unit of magnetic induction is |
A. Gauses
B. Tesla
C. Weber
D. Weber2
|
Test Questions