AP EAMCET202315 May 2023Morning ShiftPhysicsMagnetic Effects of CurrentActual
A magnetic field intensity at the centre of a circular wire of radius 0.1 ~m carrying a current 0.2 ~A is
Options
- A2 10⁻⁵ ~T
- B10⁻⁷ ~T
- C10⁻⁷ ~T
- D4 10⁻⁷ ~T
Correct answer
D. 4 10⁻⁷ ~T
Step-by-step solution
Magnetic field intensity at the centre of a circular wire B= ₀ i 2 r = 4 10⁻⁷ 0.2 2 0.1 =4 10⁻⁷ ~T