Series and parallel circuits: Electricity: Physics: GCSE (9:1)

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15 Terms

1
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Series circuit

A circuit where electrical components are connected one after another in a single loop (a circuit that only has one path for the current to flow through)

<p>A circuit where electrical components are connected one after another in a single loop (a circuit that only has one path for the current to flow through)</p>
2
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What happens when one component breaks in a series circuit?

The current will not be able to flow round the circuit; if one component breaks, then all of the other components stop working

3
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Rule for current in series

The same current passes through each component connected in series

<p>The same current passes through each component connected in series</p>
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Rule for potential difference in series

The total potential difference of the power supply is shared between components connected in series

<p>The total potential difference of the power supply is shared between components connected in series</p>
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Rule for resistance in series

The total resistance of two components connected in series is the sum of the resistance of each component

<p>The total resistance of two components connected in series is the sum of the resistance of each component</p>
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Parallel circuit

A circuit where electrical components are connected alongside each other on multiple loops; a circuit that has multiple paths for the current to flow through

<p>A circuit where electrical components are connected alongside each other on multiple loops; a circuit that has multiple paths for the current to flow through</p>
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What happens if one component breaks in a parallel circuit?

The current can still flow round the circuit through one of the other paths; if one component breaks, the other components still work

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Rule for current in parallel

The total current through the whole circuit is the sum of the currents through the separate components

<p>The total current through the whole circuit is the sum of the currents through the separate components</p>
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Rule for potential difference in parallel

The potential difference across each component is the same

<p>The potential difference across each component is the same</p>
10
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Rule for resistance in parallel

The total resistance of two resistors is less than the resistance of the smallest individual resistor

<p>The total resistance of two resistors is less than the resistance of the smallest individual resistor</p>
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I(1) = I(2) = I(3)

The mathematical relationship for the current through components connected in series

<p>The mathematical relationship for the current through components connected in series</p>
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V(total) = V(1) + V(2)

The mathematical relationship for the total potential difference in a circuit when components are connected in series

<p>The mathematical relationship for the total potential difference in a circuit when components are connected in series</p>
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R(total) = R(1) + R(2)

The mathematical relationship for the total resistance in a circuit when components are connected in series

<p>The mathematical relationship for the total resistance in a circuit when components are connected in series</p>
14
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I(total) = I(1) + I(2)

The mathematical relationship for the total current in a circuit when components are connected in parallel

<p>The mathematical relationship for the total current in a circuit when components are connected in parallel</p>
15
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V(1) = V(2) = V(3)

The mathematical relationship for the potential difference across components connected in parallel

<p>The mathematical relationship for the potential difference across components connected in parallel</p>