Q.The temperature coefficient of resistance of tungsten is $4.5 \times 10^{-3}\,^\circ$ C $^{-1}$ . Its resistance at $0^\circ$ C is 100 Ω. At what temperature will its resistance be 150 Ω?

222^\circ

250^\circ

300^\circ

350^\circ

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.The temperature coefficient of resistance of tungsten is 4.5×10−3 ∘4.5 \times 10^{-3}\,^\circ4.5×10−3∘C−1^{-1}−1. Its resistance at 0∘0^\circ0∘C is 100 Ω. At what temperature will its resistance be 150 Ω?