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Magnetism and Electromagnetism

Magnetism and Electromagnetism
What is the flux density in a magnetic field in which the flux in 0.1 m2 is 600 Wb?

6 T
6,000 T
600 T
600 T

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Magnetism and Electromagnetism
What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it?

30 AT
0.3 AT
300 AT
3 AT

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Magnetism and Electromagnetism
Which of the following is a vector quantity?

Magnetic potential
Flux density
Relalative permeability
Magnetic field intensity

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Magnetism and Electromagnetism
Fleming's left hand rule is used to find

Polarity of a magnetic pole
Direction of flux in a solenoid
Direction of force on a current carrying conductor in a magnetic field
Direction of magnetic field due to current carrying conductor

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Diamagnetic material
Ferro magnetic material
Paramagnetic material
None of the listed here

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Magnetism and Electromagnetism
For which of the following materials the net magnetic moment should be zero?

antiferrimagnetic materials
ferrimagnetic materials
diamagnetic materials
antiferromagnetic materials

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