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Q. A current i ampere flows along an infinitely straight thin walled tube, then the magnetic induction at any point inside the tube is :- a) infinite b) zero c) ( ) 2i/r tesla d) 2i/r tesla


Q. A current i ampere flows along an infinitely straight thin walled tube, then the magnetic induction at any point inside the tube is :-

a) infinite                    b) zero               c) () 2i/r  tesla           d) 2i/r tesla


Grade:11

2 Answers

ROSHAN MUJEEB
askIITians Faculty 829 Points
2 years ago
b)zero. and no current is being enclosed
RISHIKA
550 Points
2 years ago
 
hi friend
my answer is zero
because  no current is enclosed in the circle so, from Ampere's circuital law, magnetic induction is zero at every point of the circle. Hence, the magnetic induction at any point inside the infinitely long straight thin-walled tube (cylindrical) is zero.
thanks

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