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Paper 4Theory (Extended)1 marks
Understanding variable potential dividers in circuits.
Description
Variable Potential Divider Description
A circuit consists of a fixed resistor of 1 kΩ and a variable resistor connected in series with a 12 V battery. The variable resistor can be adjusted from 0 Ω to 1 kΩ.
- a[1]
State the purpose of the variable resistor in this circuit.
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