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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Reciprocal of permeability is

Reluctivity
Susceptibility
conductance
Permeability

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Magnetism and Electromagnetism
The initial permeability of an iron rod is

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

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Magnetism and Electromagnetism
The unit for reluctance is

At/Wb
Wb
tesla
At/m

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Magnetism and Electromagnetism
When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle

will depend on the amount of e.m.f. applied
will depend on the radius of the circle
will be zero
will be infinite

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

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
Polarity of a magnetic pole

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Magnetism and Electromagnetism
What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200?

8
4
6
12

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MORE MCQ ON Magnetism and Electromagnetism

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