JEE Main20245 Apr 2024Evening ShiftPhysicsMagnetic Effects of CurrentActual
A solenoid of length 0.5 ~m has a radius of 1 ~cm and is made up of ' m ' number of turns. It carries a current of 5 ~A . If the magnitude of the magnetic field inside the solenoid is 6.28 10⁻³ ~T then the value of m is _____.
Correct answer
0
Step-by-step solution
₀ n i=B n= number of turns per unit length ₀ ( m ) i = B aligned & m = B . ₀ i = 6.28 10⁻³ 0.5 12.56 10⁻⁷ 5 & ~m =500 aligned