YESPYQ Start Practice
🩺 NEET🧲 Physics

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

Q1 FREE PREVIEW
A current flows along the length of an infinitely long, straight, thin-walled pipe. Then
athe magnetic field at all points inside the pipe is the same, but not zero
bthe magnetic field at any point inside the pipe is zero
cthe magnetic field is zero only on the axis of the pipe
dthe magnetic field is different at different points inside the pipe
✓ Correct answer: b) the magnetic field at any point inside the pipe is zero
ExplanationUsing Ampere’s circuital law over a circular loop of any radius less than the radius of the pipe, we can see that net current inside the loop is zero.Hence, magnetic field at every point inside the loop will be zero.
Next question →

Practice more NEET Physics PYQs

See every question on Moving Charges and Magnetism, or browse the full NEET question bank.

See all questions on Moving Charges and Magnetism →