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Online Tests
Ics Part 2 Physics Chapter 3 Test Online MCQs With Answers
Question # 1
Torque is produced in a current carrying coil when it is placed in a
Choose an answer
Magnetic field
Electric field
Gravitational field
Nuclear field
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Question # 2
A voltmeter is always connected in
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Parallel
Series
Perpendicular
Straight line
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Question # 3
The unit of Magnetic flux is called.
Choose an answer
weber
weber/m
2
NM
-1
A
-1
None of above
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Question # 4
Which one has the least resistance.
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Galvanometer
Ammeter
Ohm meter
Volta meter
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Question # 5
The torque in the coil can be increased by increasing:
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No. of turns
Current and magnetic field
Area of coil
All of the above
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Question # 6
Magnetic lines of force are.
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Imaginary
Real
Perpendicular
In phase with electric lines of force
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Question # 7
If the number of turns become double but length remain same, then magnetic field in the solenoid become.
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Half
Double
Remain same
Zero
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Question # 8
In current carrying long solenoid the magnetic field produced does not depend upon.
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The radius of solenoid
Number of turns per unit length
Current flowing through solenoid
All of the above
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Question # 9
If current flowing through a solenoid becomes four times, then magnetic field inside becomes.
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two times
three times
four times
Half
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Question # 10
The SI unit of magnetic induction 'B' Tesla is equal to.
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NA-1m-1
Nam-1
NA-1 m
Na2m-1
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Question # 11
The magnetic field inside solenoid is given:
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μ
∘
nI
2
μ
∘
nI
μ
∘
n/1
2
μ
∘
I/n
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Question # 12
Ampere's law is applicable to:
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Circular path
Rectangular path
To any closed path
Nonwe of these
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Question # 13
Weber is the unit of
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Magnetic flux
Permeability
magnetic force
None of above
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Question # 14
Useful device to measure resistance, current and voltage is an electronic instrument called.
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Volt meter
Ammeter
Ohmmeter
Digital Multimeter
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Question # 15
To convert a galvanometer into an ammeter, we connect with it a
Choose an answer
Shunt resistance
Low value parallel
Low value by pass resistor
All of above
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Question # 16
The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by
Choose an answer
Bevm
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Question # 17
The function of three anodes a C.R.O is
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To accelerate electrons only
To focus the electrons only
To control the brightness of spot on screen
To accelerate and focus the electrons
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Question # 18
___ is correct relation.
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IT = 10
-4
G
IT = 10
4
G
IT = 10
2
G
IT = 10
-2
G
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Question # 19
Energy stored per uint volume inside a solenoid is called as
Choose an answer
energy density
Electric flux
Work
Volume charge density
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Question # 20
A positive charge is moving towards an observer, The direction of magnetic induction will be.
Choose an answer
Toward right
Anti clockwise
Clockwise
Toward left
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Question # 21
The sensitivity of galvanometer directly depends upon
Choose an answer
Magnetic field
Area of coil
Both a and b
None of a, b, c
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