Science, asked by lovelydnsingh, 4 months ago

A give two advantage of electromagnet over permanent magnet what type of magnet is used in electric bell ?
B draw a labelled diagram of an electric Bell

Answers

Answered by sahlhizan
8

Answer:

The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.

Explanation:

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