Physics for IGCSE & O level - Magnets And Currents (Section 4 - No. 38)
In a moving coil loudspeaker, what causes the coil to move?
The battery.
The magnet.
The changing current in the coil and interaction with the magnetic field.
The paper cone.
Explanation
The interaction between the current-carrying coil and the magnetic field causes the coil to move.
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