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Current and circuits
Lower Sec Science · Secondary 2 · Medium · Current and circuits
A student connects a lamp and a variable resistor in series to a cell. She turns the knob on the variable resistor to increase its resistance. What happens to the brightness of the lamp and the current in the circuit?
- Lamp gets brighter; current increases.
- Lamp gets dimmer; current decreases.
- Lamp gets brighter; current decreases.
- Lamp gets dimmer; current increases.
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