10 Replies
Q2
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Cause they r parallel
And the magnetic field is not changing
Par ek wire ko dusre ke paas layege to magnetic field distance ke sath change ho to rhi hai
When they are brought towards each other, it would gradually increase the magnetic flux for the wire without current, so an emf should be induced in the wire which produces current, that's what u thought right?
Emf is induced when flux is changed, flux is field per unit area, here the wires are straight and not a loop, there is no flux
So no emf induced and no current flow
As loops make an area
Only then flux changes and current flows
see current induced is equal to rate of change of magnetic fluc here area is not defined because its a striaght wire so thats the reason why current induced is zero
We good?
+solved @Aguilar
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