The magnetic field due to a long straight wire has been derived in terms of `mu_0`,i and d. Express this in terms of var epsilon_0, c, I, and d.

Dimension of resistance R in terms of mu0 & epsilon_(0) are

Dimension of resistance R in terms of mu_0 & epsilon_(0) are

Which of the following correctly describes the magnetic field near a long straight wire? (a) The field consists of straight lines perpendicular to the wire. (b) The field consists of straight lines parallel to the wire. (c) The field consists of radial lines originating from the wire. (d) The field consists of concentric circles centered on the wire.

B_0 is the magnetic field at point P for a given straight wire as shown in figure. If this wirre is bent into a circular loop, then magnetic field at the centre of loop is

The magnetic field strength at a point P distant r due to an infinite straight wire carrying a current i is as shown in the figure

A long conducting wire carrying a current I is bent at 120^(@) ( see figure). The magnetic field B at a point P on the right bisector of bending angle at a distance d from the bend is (mu_(0) is the permeability of free space)

Use the given figure to express : (i) a in terms of b and f, (ii) e in terms of f and g, (iii) d in terms of a and e, (iv) c in terms of e and g.

The magnetic field at a distance r from a long wire carryimg current I is 0.4 T. The magnetic field at a distance 2r is

A very long bar magnet is placed with its north pole coinciding with the centre of a circular loop carrying an electric current. i . The magnetic field due to the magnet at a point on the periphery of the wire is B . The radius of the loop is a . The force on the wire is

According to Biot-Savarat's law, magentic field due to a straight current carrying wire at a point at a distance r form it is given by B=(mu_0I)/(4pir)(sinphi_1+sinphi_2) The direction of magnetic field being perpendicular to the plane containing the wire and the point. Figure, shows a closed loop AOCBA in which current I is flowing as shown. Given OA=OB=OC=a . Find the magnetic field at point B due to this loop.