A) \[0.5\,\Omega \]
B) \[1.0\,\Omega \]
C) \[1.2\,\Omega \]
D) \[2.0\,\Omega \]
Correct Answer: A
Solution :
0.9 (2 + r) = 0.3 (7 + r) Þ 6 + 3r = 7 + r Þ r = 0.5 W
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