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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
The sources of magnetic field are
Question # 2
Magnetic lines of force:
Question # 3
The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
Question # 4
The e/m of an electron moving in a circular path in a magnetic field is equal to
Question # 5
A current carrying conductor sets up its own:
Question # 6
In a moving coil galvanometer, the deflecting couple depends upon
Question # 7
41 The force experience, when proton projected in a magnetic field with velocity 'v' is
Question # 8
The SI unit of magnetic permeability is
Question # 9
Strength of magnetic field is measured in SI units, in:
Question # 10
The direction of lines of force depends upon the direction of
Question # 11
The magnetic field inside a solenoid can be increased by:
Question # 12
In the expression of force experienced by electron, the direction of both v and B are
Question # 13
F = I(L x B) is a
Question # 14
The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
Question # 15
A solenoid is a coil of wire which is:
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ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The gavanometer constant of a moving coil galvanometer is given by |
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
|
| 2 | 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
|
| 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 SI unit of flux density is |
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
|
| 5 | A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called |
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
|
| 6 | F = I(L x B) is a |
A. vector
B. scalar
C. unit vector
D. none of these
|
| 7 | Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis: |
A. Maximum
B. Minimum
C. Zero
D. Very small
|
| 8 | The field around a moving charge is called |
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
|
| 9 | A galvanometer is an instrument used to |
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
|
| 10 | The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the |
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
|
Test Questions