Physics · Moving Charges and Magnetism
Two very long, straight, parallel wires carry steady currents I and 2I in the same direction. The distance between the wires is d. At a certain instant, a point charge q is at a point equidistant from the two wires in the plane of the wires. Its instantaneous velocity v is perpendicular to this plane. The magnitude of the magnetic force acting on the charge at this instant is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1μ0 I q v2 π d
- 22 μ0 I q vπ d
- 3Zero✓
- 4μ0 I q vπ d
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