A) 6.5 W
B) 5 W
C) 3 W
D) 4 W
Correct Answer: C
Solution :
\[{{R}_{t}}={{R}_{0}}(1+\alpha \,t)\] Þ 4.2 = \[{{R}_{0}}(1+0.004\times 100)=1.4{{R}_{0}}\]Þ \[{{R}_{0}}=3\Omega \].
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