TS EAMCET20185 May 2018Evening ShiftPhysicsMagnetic Effects of CurrentActual
Consider a current carrying wire shown in the figure. If the radius of the curved part of the wire is R and the linear parts are assumed to be very long, then the magnetic induction of the field at the point O is
Options
- A₀ 4 i R (2+ )
- B_d 2 R
- C₀ 2 i R
- D₀ 4 i R
Correct answer
A. ₀ 4 i R (2+ )
Step-by-step solution
Magnetic field at point O= Magnetic field due to wire l + Magnetic field due to semi-circle + Magnetic field due to wire 2 B_ at O = ₀ i 4 R + ₀ i 4 R + ₀ i 4 R = ₀ i 4 R (2+ )