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Subhash Koner

· started a discussion

· 1 Months ago

WRONG ANSWER, Elecrtomagnet is correct (Question: 331055.0 )

Electric bell. Electric bells like the ones used in most schools also contain an electromagnet. When the current flows through the circuit, the electromagnet makes a magnetic field. The arm hits the gong, which makes a sound

Question:

In normal electric door bell we use

Options:
A)

bar magnet

B)

U-shaped magnet

C)

U-shaped electromagnet

D)

needle magnet

Solution:

Ans: (b)

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