Edexcel GCSE Physics · 1PH0
Specification 10.14 · Paper 2
Revise: Resistors in Series and ParallelThe net resistance—the resistance of a single resistor with the same overall effect—is therefore greater than either resistor alone.
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GCSE Physics · key term
The resistance of a single resistor that would have the same overall effect as a group of resistors.
Used by Edexcel and OCR
Specification 10.14 · Paper 2
Revise: Resistors in Series and ParallelThe net resistance—the resistance of a single resistor with the same overall effect—is therefore greater than either resistor alone.
Specification P3.2i · Paper 1 (Foundation), Paper 3 (Higher)
The resistance that would have the same effect on the current from the supply as all the components considered together.
Specify where the new resistor is connected. A new parallel branch lowers the net resistance, but a resistor added in series within an existing branch does not.
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The net resistance is therefore greater than the resistance of either resistor alone. If the supply potential difference stays the same, increasing the net resistance reduces the current through the circuit.