ICSE Class 10 Physics 2018 Solved Paper

The diagram shows a coil wound around a $U$ shape soft iron bar $A B$ .

Question : 70 of 78

Marks: +1, -0

Suggest one way to strengthen the magnetic field in the electromagnet.

Solution:

The magnetic field of the electromagnet can be increased -
(1) By increasing the number of turns of winding in the solenoid.
(2) By increasing the current through the solenoid.

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