The Simple Electric Motor
- Created by: Jasmin
- Created on: 11-05-13 12:44
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- The Simple Electric Motor
- To speed it up: more current, stronger magnetic field
- If reverse the current, reverse direction motor turns
- Consists of
- Rectangular coil of insulated wire that is forcedto rotate
- Coil is connected via 2 metal or graphite brushes to the battery
- Brushes press onto metal split - ring communtator fixed to the coil
- SPLIT - RING COMMUTATOR: swap contacts every half turn to keep motor rotating in same direction
- Brushes press onto metal split - ring communtator fixed to the coil
- Coil is connected via 2 metal or graphite brushes to the battery
- Rectangular coil of insulated wire that is forcedto rotate
- When current passes through wire coil spins because
- Force acts on either side of coil due to motor effect
- Force on one side is opposite direction to force on other side
- Uses
- CD players, food mixers, hair dryers
- Fan: link coil to axle(stick), axle spins, fan attached to ale
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