CIRCUITS

Series Circuits

p.d. - is SHARED between the components. p.d. around circuit adds up to p.d. across power supply.Current - Has the SAME current through all parts of circuit.Resistance - Total resistance of circuit is sum of individual resistances. The bigger the resistance of a component the bigger it’s share.

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Caption: : R = R1 + R2 + R3

Series Circuits

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Caption: : V = V1 + V2

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Caption: : I1 = I2 = I3

Parallel Circuits

p.d. - Is the SAME across all branches.Current - Total current equals sum of all current flowing through spectate branches, Current is SHARED.Resistance - Is less than the branch with the SMALLEST resistance.

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Caption: :

Parallel Circuits

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Caption: : V1 = V2 = V3

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Caption: : I = I1 + I2