Current, voltage and resistance

Current, voltage and resistance

Current, voltage and resistance

  • Here are the basic definitions of current, voltage and resistance:
  • CURRENT - is the flow of electrons round the circuit.
  • VOLTAGE - is the driving force that pushes the current round.
  • RESISTANCE - is anything in the circuit that slows the flow down.
  • There is a relationship between these three which is summarised as OHM'S LAW:
  • V=IR
  • voltage=Current x Resistance
  • So if you increase the voltage - then more current will flow, if the resistance is constant.
  • If you increase the resistance - then lass current will flow if voltage remains constant.
Electricity and magnetism

Conductors of Electricity

Conductors of Electricity

Electricity and magnetism

Electric charge

Electric charge

Electricity and magnetism

Electromagnetic Induction

Electromagnetic Induction

Electricity and magnetism

Magnets and electromagnets

Magnets and electromagnets

Electricity and magnetism

Parallel circuits

Parallel circuits

Electricity and magnetism

Series circuits

Series circuits