Question

please tell the answer​

Answer 1

Answer:

overloading is caused due to hike in voltage and using multiple items in in a plug.

earthing is necessary for appliance with metallic body as it directly transfer the electric current in case of leakage of current to the earth, saving the man

(b) electromagnet can be prepared by coiling soft iron

with copper wire and passing electricity. the poles of an electromagnet can be detected if f the needle of the compass deflects on any pole then the pole will be e North pole