ELECTRICITY

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ELECTRICITY
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Circuits

• What are they?
• Circuits are a path along which electricity moves

Closed, series circuit
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Kinds of Circuits
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Kinds of Circuits
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Series Circuits
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Parallel Circuits
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Voltage

• Voltage is defined as the amount of work done or
  the energy required in moving a unit of positive
  charge (1 coulomb) from a lower potential to a
  higher potential. Voltage is also called
  potential difference (PD).

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Current

• Current is the amount of electric charge
  (coulombs) flowing past a specific point in a
  conductor over an interval of one second. 
• 1 ampere 1 coulomb/second
• 6.24 x 1018 electrons
• Electron flow is from a lower potential (voltage)
  to a higher potential (voltage).

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Resistance
Resistance

• Charges passing through any conducting medium
  collide with the material at an extremely high
  rate and, thus, experience friction.

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Resistance

• The rate at which energy is lost depends on the
  wire thickness (area), length and physical
  parameters like density and temperature as
  reflected through the resistively

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Ohms Law
Georg Ohm

• There is a simple linear relationship between
  voltage, current and resistance.

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Electricity

• Know what it is
• Know the different kinds
• Know about the different kinds of circuits
• Know about conductors and insulators

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ElectroBoard

• Unfold and write the first matching column on the
  left hand side.
• On the right hand side, write the second
  matching column.
• Place a brad in the first hole on the left side.
  Locate the correct answer on the right side and
  place a brad in that hole.
• Connect the brads with a strip of aluminum foil.
• Tape the ENTIRE strip of foil down between each
  item!
• 9. This creates a series circuit that you can
  use for review. All you need to test the item is
  a continuity tester or a series circuit setup.

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SOLAR POWER