a solenoid  of 1.5 m length and 4 cm diameter possesses 10turn per cm .A current of 5 A is flowing through it.The magnetic induction at distance 12cm from the same current would be
a 2 pi*10^-3T
b 2pi*10^-5T
c 4pi*10^-2 gauss
d 2pi*10^-5 gauss

Dear Student
  Kindly refer to the link for similar query.
https://www.meritnation.com/ask-answer/question/q-a-liner-solenoid-is-made-of-a-copper-wire-of-diameter-0-4/electromagnetic-induction/11232525
 
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