Vanshika Asked a Question
April 20, 2020 8:13 pmpts 30 pts
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  • Shanu arora
    derivation:
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  • Shanu arora thankyou
    electric field outside a solenoid is zero only when there is steady / constant current is flowing in the wires ,which In turn makes B zero for outside and thus using Maxwell's equa...
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    Vanshika
    yes the current is steady in the wire, but how did we get this formula ?
  • Dhairya sharma
    explanation:
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