Physicsmedium · Past Paper
Two resistors of 6 Ohms and 12 Ohms are in parallel. What is their effective resistance?
A18 Ohms
B9 Ohms
C4 Ohms
D2 Ohms
✓ Correct Answer: C — 4 Ohms
1/R = 1/6 + 1/12 = 3/12 = 1/4. Thus, R = 4 Ohms.
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