Question

in the above diagram if we replace iron with wood then also coil will act as an electro magnet ? if we are having just asimple wire not a coil then also it will work as an electromagnet ? whats the purpose of taking coiled wire ?

Answer 1

Answer:

if we are having just asimple wire not a coil then also it will work as an electromagnet in the above diagram if we replace iron with wood then also coil will act an electrmagnet.