Electric Current and Its Effects | Full Chapter Revision and Quiz | Class 7 Science

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Session was super duper interesting 😊🙏🙏
I have some doubts..
(1)if current doesn't flow through open circuit then how can we say that it's a circuit because current is not flowing ??

(2) Why we take small piece of wire having low melting point in place of fuse wire and not long piece?

(3) If current is not flowing through the iron nail then how is it behaving as a magnet?

I am Srishti Pathak..

Dynamicsrishtizzz
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Only heating effect will be formed sir. We have switched off the supply of current hence no displacement or conduction current will be there the magnetic effect will not even last a second after it

anubhavartgallary
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Thank you sir, but I had a doubt: the question at 38:33 did not have a switch, so the compass must not deflect. If I am wrong, please correct me.

geetharamini
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Sir please provide notes of this chapter

krishnatiwari
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sir please say that next 7th class time

xiiadhruv