NEET2022PhysicsMagnetic Effects of CurrentActual
The magnetic field on the axis of a circular loop of radius 100 ~cm carrying current I= 2 ~A , at point 1 ~m away from the centre of the loop is given by:
Options
- A3.14 10⁻⁷ ~T
- B6.28 10⁻⁷ ~T
- C3.14 10⁻⁴ ~T
- D6.28 10⁻⁴ ~T
Correct answer
A. 3.14 10⁻⁷ ~T
Step-by-step solution
As per question, we have; aligned B & = B ₀ ^3 & = ₀ I 2 ^3 (45^ ) & = 4 10⁻⁷ 2 2 1 ( 1 2 )^3 & =3.14 10⁻⁷ ~T aligned