A student sets up an experiment to measure the potential difference (voltage) across a filament lamp - Edexcel - GCSE Physics - Question 3 - 2013 - Paper 1
Question 3
A student sets up an experiment to measure the potential difference (voltage) across a filament lamp.
She changes the current through the lamp.
The diagram shows t... show full transcript
Worked Solution & Example Answer:A student sets up an experiment to measure the potential difference (voltage) across a filament lamp - Edexcel - GCSE Physics - Question 3 - 2013 - Paper 1
Step 1
The component X in the circuit diagram is a
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Answer
In the circuit diagram, component X is identified as a variable resistor. This component allows for the adjustment of current in the circuit, which is essential for measuring the potential difference across the filament lamp.
Step 2
The meter that measures potential difference is
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Answer
The meter that measures potential difference, often referred to as a voltmeter, is in parallel with the lamp. This arrangement ensures that the voltmeter accurately captures the voltage across the lamp while current flows through the circuit.
