AP EAMCET · PHYSICS · Magnetic Effects of Current
A long thin hollow metallic cylinder of radius has a current ampere. The magnetic induction away from the axis at a distance from the axis varies as shown in
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Using ampere circuital law, ∮B→·dl→=μ0I If an ampere loop is taken inside the hollow cylinder then, ∮B→·dl→=μ0×0=0 If an ampere loop is taken of radius r such that r≥R then,…
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