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currents and potential differences in series and parallel circuits two electric circuit laws.
Current in a series circuit
In a series circuit, the electric current is the same at every point in the circuit.
voltage law in a series circuit
the sum of potential difference across thew components in a series circuit is equal to the potential difference in the cell.
why is P.d conserved in series.
because of the conservation of energy and pd = w/Q
Potentail difference in a parallel circuit
The Pd across components connected in parallel are equal.
Current law (parallel)
the current from a source is equal to the sum of currents in the separate branches of a parallel circuit.
why is current conserved in parallel
because of the conservation law of charge.
resistors in series
R1 + R2 … =R total
resistors in parallel
1/R1 + 1/R2 … = 1/Rtotal
Note 
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