Mining and Electrical Engineering

1
Mining andElectrical Engineering
2

• Tides
• Caused by the gravitational pull of the moon and
  the Sun.
• High tides occur directly under the moon and on
  the opposite side of the planet.

3
Mining

• What are some of the advantages of mining
  activity?
• Economy
• Everyday items
• What are some of the disadvantages of mining
  activity?
• Costly
• Bad for the environment
• Pollution

4
Rare Earth Metals
5
Electrical Engineering

• Electrical Functions
• Power supply
• Conduction, insulation, Protection
• Electrical resistance (p. 468)

6

• Electrical Resistance
• The color banding shows the resistance value
• Band 1 1st digit
• Band 2 2nd digit
• Band 3 multiplier
• Band 4 tolerance

7

• Control
• Unipolar
• Bipolar
• Unidirectional (only 1 possible path)
• Bidirectional (two possible paths)

8

• Transformation of energy
• Into heat
• Light
• Magnetism
• Vibration (sound)

9

• Other Functions
• Condenser
• Transistor
• Diode

10
Earth Moon System Tides
High Tide
High Tide