Grade upto college level Magnetism
Two long parallel wires carrying current 2.5 amperes and I ampere I the same direction (directed into the plane of the paper) are held at P and Q respectively such that they are perpendicular to the plane of paper. The points P and Q are located at a distance of 5 metres and 2 metres respectively from a collinear point R (see figure) (i) An electron moving with a velocity of 4 x 105 m/s along the positive x - direction experience a force of magnitude 3.2 x 10-20 N at the point R. Find the value of I.(ii) Find all the positions at which a third long parallel wire carrying a current of magnitude 2.5 amperes may be placed so that the magnetic induction at R is zero.
Two long parallel wires carrying current 2.5 amperes and I ampere I the same direction (directed into the plane of the paper) are held at P and Q respectively such that they are perpendicular to the plane of paper. The points P and Q are located at a distance of 5 metres and 2 metres respectively from a collinear point R (see figure)
(i) An electron moving with a velocity of 4 x 105 m/s along the positive x - direction experience a force of magnitude 3.2 x 10-20 N at the point R. Find the value of I.
(ii) Find all the positions at which a third long parallel wire carrying a current of magnitude 2.5 amperes may be placed so that the magnetic induction at R is zero.
