PH-1267
Potential dividers
Physics · Secondary 4 · Medium · Potential dividers
A 12 V battery is connected across a fixed resistor and a light-dependent resistor (LDR) in series. In the dark, the resistance of the LDR is high. When bright light shines on the LDR, its resistance decreases. What happens to the potential difference across the fixed resistor?
- It decreases.
- It increases.
- It becomes zero.
- It remains unchanged.
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