Two very long, straight, parallel wires carry steady currents `I` and `-I` respectively.The distance
Channel: Doubtnut
Date: 2020-01-26

Two very long, straight, parallel wires carry steady currents `I` and `-I` respectively.The distance between the wires is `d`.At a certain instant of time, a point charge `q` is at a point equidistant from the two wires,in the plane of wires.Its instantaneous velocity `vecv` is perpendicular to this plane.The magnitude of the force due to the magnetic field acting on the charge at this instant is: