Question

in calling bell and electric crane... is used? a. bar magnet b. electromagnet c. horse shoe shaped magnet d. none what is the answer?​

Answer 1

Answer:

a bar magnet is the right answer

Answer 2

In calling bell and electric crane electromagnet is used.

Hence correct option is (b) Electromagnet.

• Electromagnets are coils of wire wrapped around a small piece of magnetic metal .
• The coils of wire act as an electromagnet in calling bell.
• Magnetic field around the wire is created when electricity passes through the wire.

• Electric crane , works on the principle that a moving electric charge generates a magnetic field.
• In electric cranes very powerful electromagnets are used. These magnets generate strong magnetic field.