Electrical Symbols SNC 1D.

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Presentation transcript:

Electrical Symbols SNC 1D

Drawing a circuit

Each item has a symbol Bulb Connecting Wires = =

Battery Switch = =

Circuit Diagram

Series Circuit Only ONE path for the flow of electrons.

Parallel circuit More than one path for the flow of electrons

Measuring Electron flow. Electron flow = current represented by the letter I (I) Electrons are so tiny that electrons are grouped into units called a COULOMB (C) 1Coulomb = 6.25 X 1018 electrons. Each electron carries a negative charge (Q) http://www.youtube.com/watch?v=5laTkjINHrg

Calculating Current Current (I) = charge(coulombs) time (secs) I = Q t = Amperes or amps (A)

Ammeter The current can be measured with an instrument called an Ammeter, symbol: