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The direction of the magnetic field due ...

The direction of the magnetic field due to a solenoid is given by

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Variation of field `=10^(5)NC^(-1)//m " Force on +q at A"=qE_(z) ("say")`
`vecp=10^(-7)C.m. " Force on -q at B=-q" [E_(z)+(d E_(z))/(dz) trianglez]`
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NEW JOYTHI PUBLICATION-ELECTRIC CHARGES AND FIELDS -Solution To Exercises From NCERT Text
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