CUET Preparation Today
In the circuit ARB and ATB are semicircles in which current is flowing as shown in figure. The magnetic field at the center S of the circular loop will be:
|
Zero $\frac{\mu_0 I}{2 \pi r}$ $\frac{\mu_0 I}{4 \pi r}$ $\frac{\mu_0 I}{8 \pi r}$ |
Zero |
The correct answer is Option (1) → Zero Due to symmetry, the magnetic field at the center of the loop due to ARC ARB and ARC ATB will cancel out each other (same magnitude but opposite direction). |
