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Online Tests
ECAT Physics Chapter 14 Electromagnetism Online Test MCQs With Answers
Question # 1
The unit of magnetic flux is
Choose an answer
Weber-m
2
Weber-m
3
Henry
Weber
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Question # 2
A galvanometer is an instrument used to
Choose an answer
measure voltage across a circuit
detect current in a circuit
measure current flowing through a circuit
none of these
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Question # 3
41 The force experience, when proton projected in a magnetic field with velocity 'v' is
Choose an answer
+e(v x B)
-C(V x B)
+e
2
(v x B)
-e(v
2
x B)
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Question # 4
For the conversion of galvanometer into voltmeter, we connect a
Choose an answer
small resistance in series with galvanometer
small resistance in parallel with galvanometer
high resistance in parallel with galvanometer
high resistance series with galvanometer
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Question # 5
The current sensitivity of the galvanometer is
Choose an answer
C/BAN
BAN/C
CAN/B
CBN/A
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Question # 6
The most suitable material for permanent magnet is
Choose an answer
cobalt
iron
steel
alaminium
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Question # 7
The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
Choose an answer
parallel to the field
Perpendicular to the field
At an angle of 45 to the field
None of the above
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Question # 8
The magnetic field inside a solenoid can be increased by:
Choose an answer
Increasing n
Decreasing I
Increasing I
By using iron core within solenoid
All correct except (B)
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Question # 9
To convert galvanometer into ammeter we connect
Choose an answer
small resistance in parallel with galvanometer
small resistance in series with galvanometer
high resistance in series with galvanometer
high resistance in parallel with galvanometer
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Question # 10
The SI unit of magnetic induction is
Choose an answer
Gauses
Tesla
Weber
Weber
2
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Question # 11
The permeability of free space is measured in:
Choose an answer
Wb/Am
Wb A/m
Am/Wb
m/Web A
None of these
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Question # 12
The force acting on a charge moving in a magnetic field
Choose an answer
is perpendicular to the both magnetic field and direction of motion
is proportional to the magnetic of charges
vanishes when the motion is directly opposite to the direction of field
all of the above
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