Magnetic field at the centre of a circular loop & arc

Magnetic field at the centre ofa circular loop of area A is B. Then magnetic moment of the loop will:

The magnetic field at the centre of a circular loop of radius 12.3 cm is 6.4 xx 10^(-6) T. What will be the magnetic moment of the loop?

State the Biot-Savart's law for the magnetic field due to a current carrying element. Use this law to obtain a formula for magnetic field at the centre of a circular loop of radius R carrying a steady current I, sketch the magnetic field lines for a current loop clearly indicating the direction of the field.

The magnetic field at the centre of the circular loop as shown in Fig. when a single wire is bent to form a circular loop and also extends to form straight sections is

Find the magnetic field at the centre of the circular loop shown in figure.

The magnetic field at the centre of circular loop in the circuit shown below is

Find the magnetic field at the centre of the circular loop shown in figure.

The magnetic field at the centre of circular loop in the circuit shown below is