Elctricity - Electricity Electricity Electricity occurs in...

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Electricity
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Electricity Static Is stationary E.g. Brush your hair Wool socks in tumble drier Current Flows around circuit E.g. turn on light Walkman Electricity occurs in 2 different forms
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Static Electricity Occurs with materials which are insulators Rubbing adds or removes electrons Object becomes charged Like objects repel, unlike attract
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Current Electricity Electrons flow through a conductor Negative to positive Circuit = continuous loop for electrons to flow Needs energy supply Energy user
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Electricity Electricity is forced around a circuit by an electrical force field Flow of electricity around a circuit is called CURRENT (I) Current measured in amps (A) Voltage (V) – Increase or decrease in the amount of electrical energy carried by the current.
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Current (I) Current is the flow of electrons around a circuit DC = direct current like battery Electrons flow in one direction AC = Alternating current like mains Electron flow changes direction 50x per second
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This note was uploaded on 01/17/2012 for the course MASS COMMU 107 taught by Professor Masror during the Spring '11 term at College of E&ME, NUST.

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Elctricity - Electricity Electricity Electricity occurs in...

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