| Explain the Insides of a D.C Motor | There is simply a Current Carrying Coil, that is between 2 Opposites Poles of a Magnet. |
| Explain how the Electric Motor works | -So, since the Coil in there has the Current moving in Opposite Directions in the 2 Sides, and that its Perpendicular to the Magnetic Field, the 2 Sides will have a Force, that is Opposite to each other
-Since the Coil is on a Spindle, the Coil can Rotate.
-The Electric Motor also has a Split-Ring commutator, which just allows the Motor to rotate in the Same Direction, by Swapping the Contacts every Half-turn
-This Direction can change. The Poles can be swapped around, and the Current can also change Direction. |
| What factors influence the Speed of the Motor | -Current
-Turns in the Coil
-Magnetic Flux Density |
| How can Fleming's Left Hand Rule come into use for an Electric Motor | -It can show if the Coil is going Clockwise, or Anticlockwise |
| Loudspeaker, what happens here in terms of Magnetism | -So the Force can be used to make things Move back and Forward
-The loudspeaker has a Coil of Wire, that has a Magnet surrounding it, and another Magnet in the Coil
-A.C Currents are given to the Coil of Wire, that is Wrapped around the Base of the Cone.
-The Current makes a Magnetic Field, it acts with the Magnetic Field from the Magnets; the Coil has to Move in a Direction
-Since however its A.C current, the Current will keep changing Direction. If the Current's Direction Change, the Movement of the Coil will also change.
-This change in Movement will make the Cone Vibrate. These Vibration makes some Pressure Variations in the Surroundings, Sound is created |
