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- Two very long parallel wires, separated by a distance d, carry equal current I in the same direction. At a certain instant of time, a point charge q is at a point P which is equidist
- #Joint Entrance Examination Main
- #Class 12
- #Magnetic Effects of Current and Magnetism
- #Physics
- #Engineering
Two very long parallel wires, separated by a distance d, carry equal current I in the same direction. At a certain instant of time, a point charge q is at a point P which is equidistant from the two wires, in the plane containing the two wires. If v is the velocity of the charge at this instant is perpendicular to this plane, the force due to magnetic field at P will.
accelerate the charged particle.
decelerate the charged particle.
make the particle oscillate between the two wires.
be zero.
Answers (1)
Since the currents in the two wires are in the same direction, the magnetic fields due to the current I in the wire at point P exactly mid-way between them will be equal and opposite. The net magnetic field at point P is zero. So the correct choice is (d).
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