Answer: Force on the conductor.
- A Induced current
- B Magnetic field
- C Force on the conductor
- D Magnetic flux
Correct answer: C. Force on the conductor
Explanation: For a current-carrying conductor in a magnetic field, Fleming's left-hand rule relates field, current and the resulting force on the conductor.
The magnetic field around a long straight current-carrying wire forms concentric circles, with direction given by the right-hand rule (point thumb along I, fingers curl in the direction of B).
Concept context
Magnetic force on moving charges and currents, the Biot-Savart law, Ampere's law, and the cyclotron - how electric currents create and respond to magnetic fields.