Q6 of 44 Page 428

Inside a current carrying solenoid the magnetic lines of force are:

An ideal solenoid acts like a wire but it is round in shape and if we look at it’s each turn one at a time we will get the direction of magnetic field using right-hand thumb rule. Each circle has magnetic field passing along its axis when we look inside it.

solenoid-magnetic-field

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4

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

 5

A soft iron bar is introduced inside a current carrying solenoid. The magnetic field inside the solenoid:

 7

The material of the core of a strong electromagnet is:

 8

The direction of induced potential difference is given by: