The magnitude of magnetic flux density (B) in micro Teslas (µT), at the center of a loop of wire wound as a regular hexagon of side length 1 m carrying a current (I = 1 A) and placed in vacuum as shown in the figure is _________. (Give the answer up to two decimal places).

The magnitude of magnetic flux density  at a point having normal distance d meters from an infinitely extended wire carrying current of I A is  (in SI units). An infinitely extended wire is laid along the x-axis and is carrying current of 4A in the +ve x direction. Another infinitely extended wire is laid along the y-axis and is carrying 2A current in the +ve direction. is permeability of free space. Assume  to be unit vectors along x, y and z axes respectively

Assuming right handed coordinate system, magnetic field intensity,  at coordinate (2,1,0) will be

Two conductors are carrying forward and return current of +I and –I as shown in Figure.  The magnetic field intensity at point P is

(a) For the construction of a suitable Gaussian surface, the capacitance of a spherical capacitor consisting of two concentric shells of radii a and b is given by = ?

(b) A current I in the short conducting element shown in fig produces a flux density  at point 1.

Determine the magnitude and the direction of

the flux density vector at point 2.

Two parallel wires separated by a distance d are carrying a current I in the same direction. The magnetic field along a line running parallel to these wires and midway between them