Electric Motors
Electric Motors
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Electric motors are devices that ROTATE when an electrical current passes through them.
The MOTOR EFFECT can be used to explain how they work.
Electric motors consist of a COIL of wire that is free to rotate in a MAGNETIC FIELD between two MAGNETS.
When current flows through the wire, a magnetic field is created around it.
The magnetic field of the WIRE interacts with the magnetic field of the MAGNETS, which causes it to experience a FORCE (the motor effect).
As the wire is in the shape of a COIL, the current either side of the coil, flow in OPPOSITE directions.
This means the FORCE of either side of the wire act in OPPOSITE DIRECTIONS.
This begins a ROTATING MOTION in the coil until the coil is in the VERTICAL POSITION.
At this point, the SPLIT RING COMMUTATOR SWAPS the direction of the current, which SWAPS the direction of the FORCES.
This ensures that the motor can CONTINUE rotating.
The split ring commutator SWAPS the direction of the current every HALF TURN, to keep the motor ROTATING.
Electric motors are devices that ROTATE when an electrical current passes through them.
The MOTOR EFFECT can be used to explain how they work.
Electric motors consist of a COIL of wire that is free to rotate in a MAGNETIC FIELD between two MAGNETS.
When current flows through the wire, a magnetic field is created around it.
The magnetic field of the WIRE interacts with the magnetic field of the MAGNETS, which causes it to experience a FORCE (the motor effect).
As the wire is in the shape of a COIL, the current either side of the coil, flow in OPPOSITE directions.
This means the FORCE of either side of the wire act in OPPOSITE DIRECTIONS.
This begins a ROTATING MOTION in the coil until the coil is in the VERTICAL POSITION.
At this point, the SPLIT RING COMMUTATOR SWAPS the direction of the current, which SWAPS the direction of the FORCES.
This ensures that the motor can CONTINUE rotating.
The split ring commutator SWAPS the direction of the current every HALF TURN, to keep the motor ROTATING.
