The magnetic field at the orgini due to a current element `vec(idl)` placed at a point with vector position `vec(r)` is

The magnetic field at the origin due to a current element I (vec dl ) placed at a positon (vec r) is

The magnetic field at the origin due to a current element I (vec dl ) placed at a positon (vec r) is

The magnetic field at the origin due to a current element I (vec dl ) placed at a positon (vec r) is

The magnetic field at the origin due to a current element I vec(dl) placed at position r is (i) ((mu_(0)i)/(4pi))((dvec(l)xxvec(r))/(r^(3))) -((mu_(0)i)/(4pi))((dvec(l)xxvec(r))/(r^(3))) (iii) ((mu_(0)i)/(4pi))((vec(r)xxdvec(l))/(r^(3))) -((mu_(0)i)/(4pi))((vec(r)xxdvec(l))/(r^(3)))

The magnetic field at the origin due to a current element I vec(dl) placed at position r is (i) ((mu_(0)i)/(4pi))((dvec(l)xxvec(r))/(r^(3))) -((mu_(0)i)/(4pi))((dvec(l)xxvec(r))/(r^(3))) (iii) ((mu_(0)i)/(4pi))((vec(r)xxdvec(l))/(r^(3))) -((mu_(0)i)/(4pi))((vec(r)xxdvec(l))/(r^(3)))

The magnetic field bar(dB) due to a small current element bar(dl) at a distance vec(r) and carrying current 'I' is

The magnetic field bar(dB) due to a small current element bar(dl) at a distance vec(r) and carrying current 'I' is

What is the magnetic field |vec(B)| at the point P due to a current carrying wire of length AB (having a current of 2A) shown in figure ?