MHT CET202312 May 2023Morning ShiftPhysicsMagnetic Effects of CurrentActual
Two similar coils each of radius R are lying concentrically with their planes at right angles to each other. The current flowing in them are I and 2I. The resultant magnetic field of induction at the centre will be ( ₀= . Permeability of vacuum)
Options
- A₀ I 2 R
- B₀ I R
- C3 ₀ I 2 R
- D5 ₀ I 2 R
Correct answer
D. 5 ₀ I 2 R
Step-by-step solution
B ₁= ₀ I 2 R , B ₂= ₀(2 I ) 2 R Resultant magnetic field, B= B ₁+ B ₂ array ll & B= ( ₀ I 2 R )^2+ ( ₀(2 I ) 2 R )^2 & B = ₀ I 2 R 1^2+2^2 & B = 5 ₀ I 2 R array