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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
Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
Question # 2
The torque per unit twist of coil is called
Question # 3
In the expression of force experienced by electron, the direction of both v and B are
Question # 4
Flurescent screen is a screen where visible spot
Question # 5
The SI unit of magnetic induction is tesla which is equal to
Question # 6
When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
Question # 7
The CRO is used for displaying the waveform of a given
Question # 8
Charge to mass ratio (e/m) of an electron is given by the relation
Question # 9
It is customary represent a current flowing towards the reader by a symbol
Question # 10
The CRO deflects the beam of electrons, when they passes through uniform
Question # 11
Magnetic induction is also called as:
Question # 12
The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
Question # 13
The most suitable material for permanent magnet is
Question # 14
if the field is directed along the normal to the area, then flux is:
Question # 15
The sources of magnetic field are
Question # 16
The SI unit of flux density is.
Question # 17
When current passes through a solenoid coil, it behaves like a
Question # 18
Resistance is measured in
Question # 19
The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
Question # 20
A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
Question # 21
The field around a moving charge is called
Question # 22
When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
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
A resistance used in voltmeter is called
Question # 25
Method "lamp and scale arrangement" used to measure the
Question # 26
Centripetal force for electron is given by
Question # 27
For the conversion of galvanometer into voltmeter, we connect a
Question # 28
The current is measured in
Question # 29
A voltmeter is used to measure the
Question # 30
Magnetic lines of force:
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 | The field around a moving charge is called |
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
|
| 2 | 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
|
| 3 | 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
|
| 4 | 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
|
| 5 | NmA-1 is commonly called: |
A. Weber
B. Apmere
C. Guass
D. Coulomb
|
| 6 | The permeability of free space is measured in: |
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
|
| 7 | The SI unit of magnetic induction is |
A. Gauses
B. Tesla
C. Weber
D. Weber2
|
| 8 | A resistance used in galvanometer to make it voltmeter is called |
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
|
| 9 | Centripetal force for electron is given by |
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
|
| 10 | Weber is a unit of |
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
|
Test Questions
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