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MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism
Try The MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 14 Electromagnetism
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Question # 1
When the charged particle is projected at right angles to the field, then experienced by it will be:
Question # 2
magnetic field is a:
Question # 3
CRO deflects the beam of
Question # 4
A solenoid is a coil of wire which is:
Question # 5
A charged particle moving at right angle to the magnetic field will experience
Question # 6
The SI unit of magnetic permeability is
Question # 7
The working of galvanometer depends upon torque exerted on a current carrying coil in
Question # 8
The galvanometer can be made sensitive if the value of the factor C/BAN is
Question # 9
The magnetic field in the middle of a solenoid due to current is
Question # 10
In the expression of force experienced by electron, the direction of both v and B are
Question # 11
The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
Question # 12
The magnetic field outside the solenoid due to current is
Question # 13
The SI unit of flux density is.
Question # 14
The sources of magnetic field are
Question # 15
In the formula B= µ̻ nl, the symbol n denotes:
Question # 16
The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
Question # 17
The unit of magnetic flux is
Question # 18
A current carrying conductor sets up its own:
Question # 19
A full-scale deflection is obtained in a galvanometer with a current of few
Question # 20
F = I(L x B) is a
Question # 21
Resistance is measured in
Question # 22
The field around a moving charge is called
Question # 23
Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
Question # 24
The e/m of an electron moving in a circular path in a magnetic field is equal to
Question # 25
The vector representation of force experience give the direction of
Question # 26
if the field is directed along the normal to the area, then flux is:
Question # 27
The SI unit of magnetic flux is.
Question # 28
Tesla is the unit of
Question # 29
Avo-meter is used of measure the
Question # 30
The current is measured in
Top Scorers Of ECAT Pre General Science Physics Chapter 14 Electromagnetism MCQ`s Test
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M M Abduullah 17 - Feb - 2021 13 Min 51 Sec 65/120 -
W Waleed Ahmed 25 - Feb - 2023 18 Min 24 Sec 55/120 -
I Inzmam Rajper 16 - Jun - 2022 10 Min 50 Sec 50/120 -
H Hiba Akhtar 06 - Mar - 2023 06 Min 56 Sec 45/120
ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Magnetic flux and flux density are related by |
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
|
| 2 | The e/m of an electron moving in a circular path in a magnetic field is equal to |
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
|
| 3 | To convert galvanometer into ammeter we connect |
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
|
| 4 | The force acting on a charge moving in a magnetic field |
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
|
| 5 | In order to make a voltmeter, high resistance is connected with galvanometer, in |
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
|
| 6 | A beam of electrons is provided by an |
A. electron gun
B. Suppray
C. Injection
D. None of these
|
| 7 | 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
|
| 8 | When charged particle is projected perpendicular to a uniform magnetic field its trajectory is |
A. circular
B. elliptical
C. cycloid
D. straight line
|
| 9 | The SI unit of magnetic induction is |
A. Gauses
B. Tesla
C. Weber
D. Weber2
|
| 10 | The angle of deflection of coil can be measured by the |
A. one method
B. three method
C. two method
D. none of these
|
Test Questions
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