Difference between revisions of "D.C. Motor"
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| style="height:20px; width:200px; text-align:center;" |A [[D.C. Motor]] spinning due to a [[Electrical Current|current]] passing through the [[electromagnet]]s. | | style="height:20px; width:200px; text-align:center;" |A [[D.C. Motor]] spinning due to a [[Electrical Current|current]] passing through the [[electromagnet]]s. | ||
| + | |} | ||
| + | |||
| + | ==Key Stage 3== | ||
| + | ===Meaning=== | ||
| + | [[File:DCMotor.png|right|300px|thumb|A typical [[D.C. Motor]].]] | ||
| + | A '''D.C. Motor''' is an electrical [[motor]] which uses an [[electromagnet]] and [[Permanent Magnet|permanent magnets]] to spin an axle. | ||
| + | |||
| + | ===About D.C. Motors=== | ||
| + | : The '''D.C.''' stands for [[Direct Current]] because the [[motor]] uses a [[Direct Current]] to work which means it can be powered by a [[Electrical Cell|cell]] or [[battery]]. | ||
| + | : The '''D.C. Motor''' uses the [[Motor Effect|motor effect]] to cause a rotation of the axle. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:MotorEffect.png|center|300px]] | ||
| + | |[[File:MotorEffectMotor.png|center|300px]] | ||
| + | |||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:left;" |The direction on the [[force]] on this [[wire]] can be found using [[Fleming's Left Hand Rule]]. | ||
| + | | style="height:20px; width:200px; text-align:left;" |In a '''D.C. Motor''' there is one or more coils of [[wire]] in the [[Magnetic Field|magnetic field]]. The [[Electrical Current|current]] through one part of the [[wire]] causes it to move in the opposite direction to the other side of the [[wire]]. This causes the coil to spin. | ||
| + | |} | ||
| + | |||
| + | : The [[force]] that can be applied by the '''motor''' depends upon: | ||
| + | :*The number of coils of [[wire]] - Double the coils, double the [[force]]. | ||
| + | :*The [[Magnetic Flux Density|magnetic flux density]] - The greater the strength of [[Magnetic Field|magnetic field]] the greater [[force]] on the [[wire]]. | ||
| + | :*The [[Electrical Current|current]] through the coil of [[wire]] - The greater the [[Electrical Current|current]] through the [[wire]], the greater the [[force]] on that [[wire]]. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:ElectricMotor.gif|center]] | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |A [[D.C. Motor]] spinning due to a [[Electrical Current|current]] passing through the [[electromagnet]]s. It can be seen that when the coil has made a half rotation the [[Electrical Current|current]] through the coil changes direction so that the the left hand side is always . | ||
|} | |} | ||
Revision as of 10:39, 5 March 2019
Contents
Key Stage 3
Meaning
A typical D.C. Motor.
A D.C. Motor is an electrical motor which uses an electromagnet and permanent magnets to spin an axle.
About D.C. Motors
- The D.C. stands for Direct Current because the motor uses a Direct Current to work which means it can be powered by a cell or battery.
- When a current passes through the electromagnet in the d.c. motor the electromagnet is attracted to one of the permanent magnets in the motor. This causes the electromagnet to move.
 |
| A D.C. Motor spinning due to a current passing through the electromagnets. |
Key Stage 3
Meaning
A typical D.C. Motor.
A D.C. Motor is an electrical motor which uses an electromagnet and permanent magnets to spin an axle.
About D.C. Motors
- The D.C. stands for Direct Current because the motor uses a Direct Current to work which means it can be powered by a cell or battery.
- The D.C. Motor uses the motor effect to cause a rotation of the axle.
 |
 |
| The direction on the force on this wire can be found using Fleming's Left Hand Rule. | In a D.C. Motor there is one or more coils of wire in the magnetic field. The current through one part of the wire causes it to move in the opposite direction to the other side of the wire. This causes the coil to spin. |
- The force that can be applied by the motor depends upon:
|
| A D.C. Motor spinning due to a current passing through the electromagnets. It can be seen that when the coil has made a half rotation the current through the coil changes direction so that the the left hand side is always . |