MCQ
A toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer radius 26 cm, around which 2,000 turns of a wire are wound. If the current in the wire is 10 A, the magnetic field inside the core of the toroid will be ______
- A$31.4 \times 10^{-2} T$
- B$15.7 \times 10^{-2} T$
- ✓$15.7 \times 10^{-3} T$
- D$31.4 \times 10^{-3} T$
