A long straight wire, carrying a current of `200A`, runs through a cubical wooden box, entering and leaving through holes in the centres of opposite faces Figure. The length of each side of the box is `20cm`. Consider an element PQ of the wire of `1cm` long at the centre of the box. Calculate the magnitude of the magnetic field produced by this element at the points A, B, C and D as shown in figure. The points A, B and C are at the centres of the faces of the cube and the point D is at the mid point of one edge.

A long, straight wire, carrying a current 200A, runs through a cubical wooden box, entering and leaving through holes in the centre of opposite faces (as shown in Fig). The length of each side of the box is 20 cm. Consider an element dl,0.100 cm long of the wire at the centre of the box. Compute the magnitude dB of the magnetic field produced by this element at the point a, b,c,d and e as shown fig. Points a,c, and dare at the centres of the faces of the cube, point b is at the midpoint of one edge, and point e is at a corner. Copy the figure and show the direction and relative magnitudes of field vectors.

A long, straight wire, carrying a current 200A, runs through a cubical wooden box, entering and leaving through holes in the centre of opposite faces (as shown in Fig). The length of each side of the box is 20 cm. Consider an element dl,0.100 cm long of the wire at the centre of the box. Compute the magnitude dB of the magnetic field produced by this element at the point a, b,c,d and e as shown fig. Points a,c, and dare at the centres of the faces of the cube, point b is at the midpoint of one edge, and point e is at a corner. Copy the figure and show the direction and relative magnitudes of field vectors.

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?

If a long straight wire carries a current of 40 A, then the magnitude of the field B at a point 15 cm away from the wire is

If a long straight wire carries a current of 40 A, then the magnitude of the field B at a point 15 cm away from the wire is

Consider the magnetic field produced by a finitely long current carrying wire .