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MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity
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Total Questions30
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Time Allowed30
Physics ECAT Pre Engineering Chapter 13 Current Electricity
00:00
Question # 1
When two spherical
conducting balls at different potentials are joined by metallic wire, the
current starts:
Question # 2
In gases, the charge carriers are:
Question # 3
The number of field lines passing through unit area held perpendicular to the field lines represent:
Question # 4
Selenium is:
Question # 5
If the ends of a wire are connected to a battery an electric field E will be set up at:
Question # 6
While finding the electric intensity at a point between two
oppositely charged parallel plates, the Gaussian surface is taken in the form
of a hollow:
Question # 7
The best conductor is:
Question # 8
Which instrument is expensive and difficult to use?
Question # 9
In order to have a
constant current through wire, the potential difference across its end should:
Question # 10
In a metal, the valence electrons are:
Question # 11
The charge carries in
the electrolyte are:
Question # 12
The rate at which the
free electrons pass through any section of a metallic wire from right to left
is:
Question # 13
Electrostatics is the branch of physics which
deals with the study of electro charges:
Question # 14
Heating effect of
current utilized in:
Question # 15
The effects of bends in
a wire on its electrical resistance are:
Question # 16
Magnetic effect of current is used:
Question # 17
The passage of current is accompanied by a magnetic field in the surrounding space:
Question # 18
Flux through a closed surface of any shape and flux
through the surface of a sphere drawn around a charge are:
Question # 19
Gaussian surface is always:
Question # 20
An example of photoconductor is:
Question # 21
The interior of a hollow charged metal sphere is a region which:
Question # 22
The free electrons in metals:
Question # 23
Aluminum is a:
Question # 24
The positive charge moving in one direction is equivalent in all external affects to a:
Question # 25
The strength of magnetic field at certain points around a wire depends upon:
Question # 26
The earth’s potential and potential at infinity are taken:
Question # 27
An inkjet printer uses in its operation:
Question # 28
The device which can
convert heat energy into electrical energy is called:
Question # 29
The current that
flows through the coil of a motor causes:
Question # 30
When two spherical
conducting balls at different potentials are joined by a metallic wire, after
some time:
Top Scorers Of Physics ECAT Pre Engineering Chapter 13 Current Electricity MCQ`s Test
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U Usman Shafiq 26 - May - 2024 00 Min 20 Sec 120/120 -
B Bilal Javed 02 - Jun - 2024 02 Min 25 Sec 120/120 -
A Abdullah Zubair 26 - Dec - 2024 07 Min 34 Sec 115/120 -
N Nitalaya Hassan 25 - Dec - 2024 01 Min 51 Sec 105/120 -
S Saira Iftikhar 11 - Aug - 2024 16 Min 48 Sec 90/120 -
S suzi 10 - Feb - 2026 06 Min 44 Sec 88/120 -
C Computer mail 01 - Mar - 2026 10 Min 07 Sec 88/120 -
M Muhammad Ali 27 - Jun - 2024 03 Min 38 Sec 85/120 -
F Furqan Asif 26 - Mar - 2026 17 Min 38 Sec 84/120 -
G GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 30 - May - 2024 05 Min 26 Sec 80/120 -
M Mehpara Khatoon 07 - Aug - 2024 05 Min 07 Sec 75/120 -
H HUSNAIN AHMAD 05 - Jun - 2024 05 Min 28 Sec 75/120 -
H Huzaifa Asim 25 - May - 2024 06 Min 23 Sec 75/120 -
M Maira Arshad 31 - May - 2024 15 Min 09 Sec 75/120 -
T Taha 29 - Mar - 2026 10 Min 04 Sec 72/120
ECAT Physics Chapter 13 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The electric flux through any surface depends upon: |
A.
Intensity of electric field
B.
Area of the surface
C.
Angle between intensity and area
D.
All of these |
| 2 | Magnetic effect of current is used: |
A.
In electric motor
B.
To detect current
C.
To measure current
D.
All
of these |
| 3 | When a constant potential difference is applied across the conductor, the drift velocity of electrons: |
A.
Increases
B.
Decreases
C.
Remains
the constant
D.
Either of these |
| 4 | When certain area A is held parallel to the field lines, then: |
A.
No lines cross this area
B.
Maximum lines pass through this area
C.
The number of lines are between zero and maximum
D.
Both (A) and (B) correct |
| 5 | The term drift velocity is used when the ends of a wire are: |
A.
Connected to a laser
source
B.
Connected to a voltage
source
C.
Not connected to a
voltage source
D.
At different values of
potential |
| 6 | The interior of a hollow charged metal sphere is a region which: |
A.
Contain some magnitude of electric field
B.
Is full of electric field lines
C.
Is field-free region
D.
Either (A) or (B) |
| 7 |
The current that
flows through the coil of a motor causes: |
A.
Its shaft to revolve
B.
Its brushes to rotate
C.
Motor to move
D.
Its
shafts to rotate |
| 8 | Electric field lines emerge from the charge in: |
A.
One dimension
B.
Two dimensions
C.
Three
dimensions
D.
Four dimensions |
| 9 | Tick the correct statement: |
A.
Both the potential and potential difference is scalars
B.
Potential is a scalar but potential difference is a vector
C. Both are vectors
D.
Potential is vector but potential difference is scalar |
| 10 | The free electrons in metals: |
A.
Are
in random motion and their speed depends upon temperature
B.
Move in particular
direction
C.
Move with speed of
light
D.
Move such that their
speed does not depend on their temperature |
Test Questions
Share your comments & questions here
Hamza
17 Aug 2019It has many error
Salmankhan
02 Feb 2018Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator