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How current can be induced in a coil due...

How current can be induced in a coil due to a magnet?

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By moving a magnet towards or away from a coil, current is induced in coil.
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How current can be induced in a coil C due to another coil C'?

Could a current be induced in a coil by rotating a magnet inside the coil ? If so, how ?

Name and state the rule to find the direction of : (a) current induced in a coil due to its rotation in a magnetic field. (b) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.

State the rule to determine the direction of a (i) magnetic field produced around a straight conductor carrying current. (ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, and (iii) current induced in a coil due to its rotation in a magnetic field.

The formula for induced e.m.f. in a coil due to change in magnetic flux through the coil is (here A = area of the coil, B = magnetic field)

MODERN PUBLICATION-ELECTROMAGNETIC INDUCTION-REVISION EXERCISE (Very Short Answer Questions Carrying I mark)
  1. How current can be induced in a coil due to a magnet?

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  2. What is the effect on the deflection of a galvanometer attached to a c...

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  3. How much deflection is produced in a galvanometer attached to a coil, ...

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  4. How current can be induced in a coil C due to another coil C'?

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  5. What is the basic cause of induced e.m.f. ?

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  6. The induced e.m.f. is sometimes called back e.m.f. Why ?

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  7. Does the change in magnetic flux always produce both emf and current?

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  8. A vertical matallic pole falls down through the plane of magnetic meri...

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  9. Two identical loops, one of copper and other of manganin, are removed ...

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  10. What will be the magnitude of induced emf in a rectangular loop ABCD, ...

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  11. Predict the polarity of the capacitor in the situation described below...

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  12. Use Lenz's law to determine the direction of the induced current when ...

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  13. The electric current flowing in a wire in the direction from B to A de...

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  14. What do you mean by magnetic flux through a surface?

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  15. A long straight current carrying wire passes normally through the c...

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  16. What is the relation between weber and Maxwell ?

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  17. Predict the direction of induced current in metal rings 1 and 2 when c...

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  18. Volt-sec is the unit of which physical quantity?

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  19. State Lenz's law of electromagnetic induction. The magnetic threading ...

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  20. When the north pole of a magnet is moved away from a coil, what is the...

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