how make a project of make four electromagnet with 20 ,40,60 and 80 turns. connect them one by one to a battery of 2 cells .bring the electromagnet in a box of pins count the number of pins attracted by it .compare the strengths of the electromagnet
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Rohanmade four electromagnets A, B, C, and D with 20, 40, 60 and 80 turns.
He connected them one by one to a battery of two cells and brought them near
a box of all-pins. Which electromagnet will attract the maximum pins and why?
He connected them one by one to a battery of two cells and brought them near
a box of all-pins. Which electromagnet will attract the maximum pins and why?
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