| 1. | A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be ? | |
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M
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M/2
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2 M
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M/4
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Report Question| 2. | The left hand rule correlates to ? | |
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current, induced e.m.f. and direction of force on a conductor
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magnetic field, electric field and direction of force on a conductor
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self induction, mutual induction and direction of force on a conductor
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current, magnetic field and direction of force on a conductor
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| 3. | In a simple magnetic field the strength of magnet flux ? | |
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is constant and has same value in energy part of the magnetic field
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increases continuously from initial value to final value
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decreases continuously from initial value to final value
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first increases and then decreases till it becomes zero
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| 4. | Strength of an electromagnet can be increased by ? | |
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increasing the cross-sectional area
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increasing the number of turns
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increasing current supply
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all above methods
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| 5. | Gilbert is a unit of ? | |
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electromotive force
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magnetomotive force
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conductance
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permittivity
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| 6. | Substances which have permeability less than the permeability of free space are known as ? | |
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ferromagnetic
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paramagnetic
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diamagnetic
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bipolar
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| 7. | The magnetism left in the iron after exciting field has been removed is known as ? | |
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permeance
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residual magnetism
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susceptance
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reluctance
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| 8. | Magnetic moment is a ? | |
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pole strength
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universal constant
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scalar quantity
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vector quantity
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| 9. | When an iron piece is placed in a magnetic field ? | |
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the magnetic lines of force will bend away from their usual paths in order to go away from the piece
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the magnetic lines of force will bend away from their usual paths in order to pass through the piece
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the magnetic field will not be affected
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the iron piece will break
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| 10. | Which of the following is the unit of magnetic flux density ? | |
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weber
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lumens
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tesla
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none of the above
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