A) \[180\,\Omega \]
B) \[225\,\Omega \]
C) \[258\,\Omega \]
D) \[317\,\Omega \]
Correct Answer: C
Solution :
\[\frac{{{R}_{150}}}{{{R}_{500}}}=\frac{[1+\alpha (150)]}{[1+\alpha (500)]}\]. Putting \[{{R}_{150}}=133\Omega \] and \[\alpha =0.0045/{}^\circ C,\] we get \[{{R}_{500}}=258\Omega \]
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