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Boojho made an electromagnet by winding 50 turns of wire over an iron screw. Paheli also made an electromagnet by winding 100 turns over a similar iron screw. - Science

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Question

Boojho made an electromagnet by winding 50 turns of wire over an iron screw. Paheli also made an electromagnet by winding 100 turns over a similar iron screw. Which electromagnet will attract more pins? Give reason.

Give Reasons
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Solution

Paheli’s electromagnet will attract more pins as it has more number of turns of wire on it and thus a stronger electromagnet.

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Chapter 14: Electric Current and Its Effects - SHORT ANSWER QUESTIONS [Page 78]

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NCERT Exemplar Science [English] Class 7
Chapter 14 Electric Current and Its Effects
SHORT ANSWER QUESTIONS | Q 16. | Page 78

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