A wire oriented in the East-West direction carries a current eastward. Direction of the magnetic field at a point of the South of the wire is

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 wire of infinite length bent as shown in figure carries current l. What is the magnetic field at the point P ?

A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is

A circular loop is kept in that vertical plane which contains the north- south direction. It carries a current that is towards north at the topmost point. Let A be a point on the axis of the circle to the east of it and B a point on this axis to the west of it. The magnetic field due to the loop.

A wire placed along north-south direction carries a current of 10 A from south to north. Find the magnetic field due to a 1 cm piece of wire at a point 200cm north-east from the piece.

A horizontal overhead power lines carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1*5m below the line?

Two long, straight wires, one above the other, are separated by a distance 2a and are parallel to the x-axis. Let the y-axis be in the plane of the wires in the direction form the lower wire to the upper wire. Each wire carries current I in the +x-direction. What are the magnitude and direction of the net magnetic field of the two wires at a point in the plane of wires: (a) midway between them? (b) at a distance a above the upper wire? (c) at a distance a below the lower wire?

Find the magnitude and direction of magnetic field at point P due to the current carrying wire as shown in

Two long parallel wires carry equal current I flowing in the same direction are at a distance 2d apart. The magnetic field B at a point lying on the perpendicular line joining the wires and at a distance x from the midpoint is

Two parallel long wires carry currents 18A and 3A. When the currents are in the same direction, the magnetic field at a point midway between the wire is B_(1) . If the direction of i_(2) is reversed, the field becomes B_(2) . Then the value of B_(1)//B_(2) is