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MCQ's Test For ECAT Physics Chapter 14 Electromagnetism
Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 14 Electromagnetism
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Question # 1
Current is measured in
Question # 2
In a moving coil galvanometer, the deflecting couple depends upon
Question # 3
When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
Question # 4
The magnetic field in the middle of a solenoid due to current is
Question # 5
In order to make a voltmeter, high resistance is connected with galvanometer, in
Question # 6
The angle of deflection of coil can be measured by the
Question # 7
Charge to mass ratio (e/m) of an electron is given by the relation
Question # 8
For the conversion of galvanometer into voltmeter, we connect a
Question # 9
Which one of the following relations is correct?
Question # 10
When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
Question # 11
In the formula B= µ̻ nl, the symbol n denotes:
Question # 12
A current carrying conductor sets up its own:
Question # 13
Tesla is the unit of
Question # 14
The CRO is used for displaying the waveform of a given
Question # 15
Weber is a unit of
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P Paris Ali 30 - Jul - 2024 08 Min 52 Sec 45/60
ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Ammeter is used to measure |
A. voltage
B. resistance
C. voltage and current
D. current
|
| 2 | If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field: |
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
|
| 3 | Which one of the following relations is correct? |
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
|
| 4 | The voltage increases linearly with |
A. time
B. velocity
C. acceleration
D. torque
|
| 5 | 41 The force experience, when proton projected in a magnetic field with velocity 'v' is |
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
|
| 6 | The SI unit of magnetic permeability is |
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
|
| 7 | In a straight current carrying conductor, the direction of magnetic field can be found by |
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
|
| 8 | The torque per unit twist of coil is called |
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
|
| 9 | When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be |
A. changed
B. zero
C. unchanged
D. none of these
|
| 10 | The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed |
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
|
Test Questions
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