TS EAMCET · Physics · Magnetic Effects of Current
A wire of length \(l\) is bent into a circular coil of one turn of radius \(R_1\). Another wire of the same material and same area of cross-section and same lengths is bent into a circular coil of two turns of radius \(R_2\). When the same current flows, through the two coils, the ratio of magnetic induction at the centres of the two coils is
- A \(1: 2\)
- B \(1:1\)
- C \(1:4\)
- D \(3:1\)
Answer & Solution
Correct Answer
(C) \(1:4\)
Step-by-step Solution
Detailed explanation
Magnetic induction at the centre of a circular coil…
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