Statement (A) :The potential difference across the ends of a conductor is doubled the current through it also gets doubled
Statement (B) :Along wire has more resistance and short wire of same material has less resistance

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Both A and B are true

A is false and B is true

A is true and B is false

Both A and B are false

answer is A.

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Detailed Solution

Statement A is true. According to ohm’s law $V α I$ if V is doubled then I also will get doubled to maintain $\frac{V}{I}$ = constant

Statement B is also true. Because $R α I$ so long wire has more resistance than short wire

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