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5/30 MCQs for:
Magnetism
A long straight wire carries current toward the east. A proton moves toward the east alongside and just south of the wire. What is the direction of the force on the proton?
A charged particle moves and experiences no magnetic force. From this we can conclude that:
Two long parallel wires are placed side-by-side on a horizontal table. If the wires carry current in opposite directions,
A current carrying circular loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense. What is the direction of the magnetic field caused by this current, inside the loop? The magnetic field:
A vertical wire carries a current straight up in a region where the magnetic field vector points due north. What is the direction of the resulting force on this current?