Physicsmedium · Past Paper
A wire of resistance 20 Ohms is cut into two equal halves. What is the resistance of each half?
A40 Ohms
B20 Ohms
C10 Ohms
D5 Ohms
✓ Correct Answer: C — 10 Ohms
Resistance is proportional to length. Halving the length halves the resistance.
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