Question

\(e^-\) revolving with speed V is producing magnetic field B at center. Find relation between radius of path, B & V?

• A. \(B∝V∝\frac 1r\)
• B. \(B∝V∝\frac 1r^2\)
• C. \(B∝V^2∝\frac 1r\)
• D. \(B∝V^2∝\frac 1r^2\)

Answer 1

The Correct Option is B

The correct option is (B): \(B∝V∝\frac 1r^2\).