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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
if the field is directed along the normal to the area, then flux is:
Question # 2
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 # 3
The SI unit of flux density is.
Question # 4
Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
Question # 5
NmA-1 is commonly called:
Question # 6
The vector representation of force experience give the direction of
Question # 7
F = I(L x B) is a
Question # 8
Charge to mass ratio (e/m) of an electron is given by the relation
Question # 9
The CRO deflects the beam of electrons, when they passes through uniform
Question # 10
The current sensitivity of the galvanometer is
Question # 11
When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
Question # 12
41 The force experience, when proton projected in a magnetic field with velocity 'v' is
Question # 13
The strength of magnetic field around the current conductor is
Question # 14
Weber is a unit of
Question # 15
Amperean path is a:
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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R Rizwan Khuharo 13 - Apr - 2024 00 Min 51 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 | The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed |
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
|
| 2 | In the formula B= µ̻ nl, the symbol n denotes: |
A.
Total number of turns
of solenoid
B.
Number
of turns per unit length
C.
Number of turns per
unit volume
D.
Numbers of turns per
unit area |
| 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 | Galvanometer is a device used for the detection of |
A. voltage
B. current
C. temperature
D. pressure
|
| 5 | The voltage increases linearly with |
A. time
B. velocity
C. acceleration
D. torque
|
| 6 | 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units? |
A. 0
B. 1
C. 0.5
D. -1
|
| 7 | NmA-1 is commonly called: |
A. Weber
B. Apmere
C. Guass
D. Coulomb
|
| 8 | The most suitable material for permanent magnet is |
A. cobalt
B. iron
C. steel
D. alaminium
|
| 9 | 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
|
| 10 | The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon |
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
|
Test Questions