Physicshard · Past Paper
What is the equivalent resistance between points A and B if three 6-Ohm resistors form a triangle?
A18 Ohms
B2 Ohms
C4 Ohms
D6 Ohms
✓ Correct Answer: C — 4 Ohms
Between two corners, one 6Ω resistor is in parallel with two 6Ω resistors in series (12Ω). (6*12)/(6+12) = 72/18 = 4Ω.
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