Q2 of 44 Page 428

By increasing the number of turns 3 times in a toroidal solenoid, the magnetic field:

This is a rule you need to memorize that the magnetic field of all the instruments used is directly proportional to the number of turns with same powers.

That is, B – magnetic field ; N – number of turns.



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10

(a) What is meant by a magnetic field?

(b) How is the direction of magnetic field at a point determined?


(c) Describe an activity to demonstrate the direction of the magnetic field generated around a current carrying conductor.


(d) What is the direction of magnetic field at the centre of a current carrying circular loop?

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A current carrying wire produces:

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The induced potential difference produced, in a coil when a magnet is inserted in it doesn’t depend upon:

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The laws of electromagnetism tell us that energy can be transferred from one object to another: