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TEST - 39 ( ELECTROMAGNETISM )
EFFORTS NEVER FAIL
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1. Magnetic flux is the product of magnetic field induction and
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1 point
length
volume
area
height
2. The charge is moving along the direction of magnetic field. Then force acting on it is
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strong
weak
zero
unknown
3. Faraday's law of induction is the consequence of
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energy
conservation of energy
conservation of mass
energy-mass
4. Generators works on the principle of
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Electromagnetic induction
Mutual Induction
Conservation of mass
energy-mass
5. The S.I unit of magnetic field induction is
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Weber
Weber/m2
Coulomb
N/m
6. Magnetic field is produced by the flow of current. This phenomenon was discovered by
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Coulomb
Oersted
Faraday
Maxwell
7.Which of the following instruments works by electromagnetic induction?
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1 point
Dynamo
Moving Coil Galvanometer
Telephone Receiver
Simple Motor
8. For making strong electromagnet, the material of the core should be
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1 point
Brass
Laminated Steel Strips
Soft Iron
Steel
9. A device for producing electric current is called
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1 point
Generator
Voltmeter
Galvanometer
Ammeter
10. A magnetic filed is a
quantity.
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1 point
Vector
Scalar
Tensor
Both A and B
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