A wire carries an alternating current ` i=i_0sinomegat`. In there an electric field in the vicinity of the wire?

Shows a square frame of wire having a total resistance r placed coplanarly with a long, straight wire. The wire carries a current I given by i= i_0 sin omega t . Find(a) the flux of the magnetic field through the square frame, (b) the emf induced in the frame and (c) the heat developd in the frame in the time interval 0 to (20pi)/(omega) .

A wire of length l is bent in the form of an equilateral triangle and carries an electric current i. (a) Find the magnetic field B at the centre. (b) If the wire is bent in the form of a square, what would be the value of B at the centre?

A long wire carrying a current i is bent to form a plane angle alpha . Find the magnetic field B at a point on the bisector of this angle situated at a distance x from the vertex.

A wire has a length of 2.0m and a resistance of 5.0(Omega) .Find the electric field existing inside the wire if it carries a current of 10A.

A transmission wire carries a current of 100A. What would be the magnetic field B at a point on the road if the wire is 8 m above the road?

A square loop of wire of side a carries a current i . Calculate the magnetic field at the centre of the loop

Consider a coaxial cable which consists of an inner wire of radius a surrounded by an outer shell of inner and outer radii b and c respectively. The inner wire carries an electric current (i_0) and the outer shell carries an equal current in opposite direction. Find the magnetic field at a distance x from the axis where b.

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.

A straight wire of length l can slide on two parallel plastic rails kept in a horizontal plane with a separation d. The coefficient of friction between the wire and the rails is mu . If the wire carries a current I, what minimum magnetic field should exist in the space in order to slide the wire on the rails.