MCQ
What is the magnetic field inside a pipe?
- AUnity
- BInfinity
- ✓Zero
- DTwo
✓
Answer
Correct option: C.
Zero
The magnetic field inside a pipe, i.e. inside a hollow cylindrical wire is zero.
This is due to the symmetry of the situation $($pipe$).$
The pipe can be considered as a series of thin wires arranged in a circle.
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