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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
00:00
Question # 1
Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
Question # 2
Which is modified form of galvanometer
Question # 3
When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
Question # 4
The direction of lines of force depends upon the direction of
Question # 5
Amperean path is a:
Question # 6
The magnetic field inside a solenoid can be increased by:
Question # 7
For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
Question # 8
In the expression of force experienced by electron, the direction of both v and B are
Question # 9
When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
Question # 10
The SI unit of flux density is
Question # 11
How many number of anodes used in electron gun
Question # 12
A full-scale deflection is obtained in a galvanometer with a current of few
Question # 13
In a straight current carrying conductor, the direction of magnetic field can be found by
Question # 14
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:
Question # 15
Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
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ECAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by |
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
|
| 2 | Magnetic flux and flux density are related by |
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
|
| 3 | Strength of magnetic field is measured in SI units, in: |
A. N
B. N/Am
C. Am/N
D. Nm/A
|
| 4 |
Amperean path is a: |
A.
Closed path
B.
Rectangular path
C.
Circular path
D.
Any
of above |
| 5 | Avo-meter is used of measure the |
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
|
| 6 | A long wire wound tightly on a cylindrical core is called: |
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
|
| 7 | A shunt resistance parallel to the galvanometer is used to convert it into |
A. avometer
B. millimeter
C. voltmeter
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 | Resistance is measured in |
A. volts
B. ampere
C. ohm
D. watt
|
| 10 | magnetic field is a: |
A.
Vector
quantity
B.
Scalar quantity
C.
Scalar as well as
scalar quantity
D.
Any of (A) or (B) |
Test Questions