A uniform wire of resistance 100 Ω is melted and recast in a wire of length double that of the original. What would be the resistance of the wire

Q. A uniform wire of resistance 100 Ω is melted and recast in a wire of length double that of the original. What would be the resistance of the wire

(a) 400Ω

(b) 500Ω

(c) 300Ω

(d) 450Ω

Ans: (a)

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