TS EAMCET · Physics · Magnetic Effects of Current
A long straight rod of diameter 4 mm carries a steady current ' \(i\) '. The current is uniformly distributed across its cross-section. The ratio of the magnetic fields at distances 1 mm and 4 mm from the axis of the rod is
- A 1:2
- B 1:4
- C 4:1
- D 1:1
Answer & Solution
Correct Answer
(D) 1:1
Step-by-step Solution
Detailed explanation
R=2mm,…
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