AP EAMCET20228 Jul 2022Morning ShiftPhysicsMagnetic Effects of CurrentActual
Two long wires carrying current is 8 ~A and 6 ~A along x axes and y axes respectively. The magnetic field at the point (2 i +4 j ) is (Take _ o =4 10⁻⁷ SI unit)
Options
- A1 10⁻⁶ ~T
- B2 10⁻⁶ ~T
- C1 10⁻⁷ ~T
- D2 10⁻⁷ ~T
Correct answer
D. 2 10⁻⁷ ~T
Step-by-step solution
We have B _ P = ₀ i ₁ 2 r ₁ + ₀ i ₂ 2 r ₂ aligned & =2 10⁻⁷ ( 6 2 - 8 4 ) & =2 10⁻⁷(3-2) aligned =2 10⁻⁷ ~T