A current I flows along the length of an infinitely long, s…

Physics Moving Charge and Magnetism Magnetic Field Due to a Cylinder, Large Sheet, Solenoid, Toroid and Ampere's Law MCQ (Single Correct)

A current I flows along the length of an infinitely long, straight, thin walled pipe. Then:

the magnetic field is zero only on the axis of the pipe

the magnetic field is different at different points inside the pipe

the magnetic field at any point inside the pipe is zero

the magnetic field at all points inside the pipe is the same, but not zero

Text Solution

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The correct answer is:

Magnetic field inside the infinitely long pipe is zero at all points.

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