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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
00:00
Question # 1
A solenoid is a coil of wire which is:
Question # 2
Resistance is measured in
Question # 3
In the formula B= µ̻ nl, the symbol n denotes:
Question # 4
A full-scale deflection is obtained in a galvanometer with a current of few
Question # 5
The SI unit of magnetic induction is
Question # 6
The sources of magnetic field are
Question # 7
When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
Question # 8
The magnetic field inside a solenoid can be increased by:
Question # 9
Lorentz force is defined as
Question # 10
Amperean path is a:
Question # 11
Which is modified form of galvanometer
Question # 12
Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
Question # 13
The force experienced by charged particle is maximum, if it moves
Question # 14
The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
Question # 15
Method "lamp and scale arrangement" used to measure the
Question # 16
The torque per unit twist of coil is called
Question # 17
The unit of magnetic flux is
Question # 18
The magnetic field outside the solenoid due to current is
Question # 19
The voltage increases linearly with
Question # 20
At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
Question # 21
A beam of electrons is provided by an
Question # 22
The permeability of free space is measured in:
Question # 23
How many number of anodes used in electron gun
Question # 24
In the region surrounding a current carrying wire:
Question # 25
When current passes through a solenoid coil, it behaves like a
Question # 26
The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
Question # 27
Flurescent screen is a screen where visible spot
Question # 28
A voltmeter is used to measure the
Question # 29
Electron gun consist of
Question # 30
if the field is directed along the normal to the area, then flux is:
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 | Resistance is measured in |
A. volts
B. ampere
C. ohm
D. watt
|
| 2 | The magnetic field outside the solenoid due to current is |
A. strong
B. zero
C. weak
D. uniform
|
| 3 | It is customary represent a current flowing towards the reader by a symbol |
A. (x)
B. (+)
C. (.)
D. (-)
|
| 4 | Weber is a unit of |
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
|
| 5 | The force experienced by charged particle is maximum, if it moves |
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
|
| 6 | NmA-1 is commonly called: |
A. Weber
B. Apmere
C. Guass
D. Coulomb
|
| 7 | If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is |
A. F = B2
B. F = 0
C. F = B
D. F = B/2
|
| 8 | Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as |
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
|
| 9 | The CRO is used for displaying the waveform of a given |
A. current
B. voltage
C. both of them
D. none of them
|
| 10 | 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
|
Test Questions