The radius of the circular conducting loop shown in figure is R. Magnetic field is…
Physics · Class 12 · CBSE — Electromagnetic Induction
The radius of the circular conducting loop shown in figure is R. Magnetic field is decreasing at a constant rate a. Resistance per unit length of the loop is \(\rho\) . Then current in wire (AB is one of the diameters) is
- \(\frac{R \alpha}{2 p}\) , from B to A
- \(\frac{R \alpha}{2 \rho}\) , from A to B
- \(\frac{2 R \alpha}{\rho}\) , from A to B
- zero
Answer
(D) zero
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