Electric Circuit

1
Insulators and Conductors

• Electric Circuit
• Current provided by battery flows through wire,
  into the light bulb, through another wire, and
  back to the battery.
• Current flow of electrons

Conductor lets electrons flow
Insulator doesnt let electrons flow
2
Insulators and Conductors
Insulators hold electrons close like a dog on a
leash
Atom
Conductors let electrons flow like dogs running
free
3
Resistance

• Resistance How much the material resists the
  flow of electrons
• R V / I
• The higher the resistance, the slower the flow of
  electrons, the smaller the power output

R (? x L) / A R - Resistance
? - Density
L - Length
A - Area