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Magnetism and Electromagnetism

Magnetism and Electromagnetism
When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

remains constant
increases
reaches zero
decreases

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Magnetism and Electromagnetism
The initial permeability of an iron rod is

The permeability at the end of the iron rod
The highest permeability of the iron rod
The lowest permeability of the iron rod
The permeability almost in non-magnetised state

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

Direction of flux in a solenoid
Polarity of a magnetic pole
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
Fleming's left hand rule is used to find

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

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Magnetism and Electromagnetism
Which of the following materials are diamagnetic?

Copper
Iron
Silver
Silver and copper

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Magnetism and Electromagnetism
What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m?

111 At/Wb
11 At/Wb
1 At/Wb
1111 At/Wb

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