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Reshma
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Homework Statement
Two parallel infinitely long wires separated by a distance D carry steady currents I1 and I2 (I1>I2) flowing in the same direction. A positive point charge is moves between the wires parallel to the currents with a speed v at the distance D/2 from either wire. What is magnitude of an electric field that must be turned on to maintain the trajectory of the particle is proportional to?
Homework Equations
Magnetic attraction force per unit length [tex]f_m = {\mu_0 \over 4\pi} {I_1 I_2 \over D}[/tex]
If [itex]\lambda[/itex] is the linear charge density the electric force of repulsion per unit length is: [tex]f_e = \frac{1}{2\pi \epsilon_0}{\lambda \over D}[/tex]
The Attempt at a Solution
Without the charge moving the force between the wires will be attractive. The moving charge with exert a repulsive force. How do I bring the electric field in this picture? Use Gauss's law?
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