MHT CET20244 May 2024Evening ShiftPhysicsMagnetic Effects of CurrentActual
A particle carrying a charge equal to 100 times the charge on an electron is rotating one rotation per second in a circular path of radius 0.8 m . The value of magnetic field produced at the centre will be ( ₀= permeability of vacuum)
Options
- A10⁻⁷ ₀
- B10⁻¹⁷ ₀
- C10⁻⁶ ₀
- D10⁻⁷ ₀
Correct answer
B. 10⁻¹⁷ ₀
Step-by-step solution
Charged particle moving in a circular path acts like a current carrying coil. Let I be the current due to the particle current is, I= q t = 100 e 1 =100 e Magnetic field at the centre due to current carrying coil, aligned B _ centre & = ₀ 4 2 I r = ₀ 4 2 100 e r & = ₀ 4 2 100 (1.6 10⁻¹⁹ ) 0.8 =10⁻¹⁷ ₀ aligned