Physics
Grade-10
Easy

Question

In the given figures, there are four electromagnets. Which among them is the strongest?

hintHint:

 The strength of electromagnet depends on their number of turns, strength of current and the core the core is made of up which is a magnetic material. Soft magnetic core is best for electromagnet strength.

The correct answer is:



    • Electromagnet is a device that consists of a core of magnetic material that is surrounded by a coil through which an electric current is passed to magnetize the core
    •  The strength of electromagnet depends on their number of turns, strength of current and the core the core is made of up which is a magnetic material. Soft magnetic core is best for electromagnet strength.
    • In (A), electromagnet has a soft iron rod inside it which increases the magnetic field in the electromagnet.

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