The wire loop shown in figure carries a current as shown. The magnetic field at the centre O is ,

A square loop of edge 'a' carries a current l. The magnetic field at the centre of loop is

The segment of wire shown in figure carries a current of i=5 A. The magnetic field (in Tesla) at the point P is

A square loop of side a carris a current I . The magnetic field at the centre of the loop is

The wire shown in figure carries a current of 40A . If r=3.14cm the magnetic field at point p will be

A wire of infinite length bent as shown in figure carries current l. What is the magnetic field at the point P ?

The wire shown in figure carries a current of 32 A . If r = 3.14 cm , the magnetic field at point P will be

A rectangular loop of metallic wire is of length a and breadth b and carries a current i. The magnetic field at the centre of the loop is

A long wire having a semi-circular loop of radius r carries a current I, as shown in Fig. Find the magnetic field due to entire wire.