Physics · Magnetic effect of current · ampere's law and its application
JEE MainsNEET
A long solid cylindrical conductor of radius R carries current density J=J₀r². Find B at radius r<R.
Options
μ₀J₀r³/4
μ₀J₀r³/2
μ₀J₀r²/4
μ₀J₀R²r/4