2. Electricity

2. Electricity

VOLTAGE = CURRENT x RESISTANCE
CHARGE = CURRENT x TIME
> Series Circuits
1. Current is constant
2. Voltage varies
3. Total resistance should increase
> Parallel Circuits
1. Voltage is constant
2. Current varies
3. Total resistance should decrease
ENERGY = POWER x TIME
A . C Current
1. Live wire
  1. Fuse
  2. Switch
  3. Circuit Breaker
    1. Resettable unlike a fuse
    2. More sensitive than a fuse
    3. Earth wire is not required
    4. expensive than a fuse
2. Neutral Wire
3. Earth wire
  1. - Protects the device from excess current
OHM'S LAW
1. If temperature is constant, voltage is directly proportional to the current in an ohmic conductor
2. Length of a wire is directly proportional to its resistance
  1. 1. Surface area is inversely proportional

Zusammenfassung der Ressource

	Erstellt von Thivyatharani Thayaratnam vor etwa ein Jahr