when a potential difference of 2V is applied across the end of a wire of 5m length, a current of 1 A is found to flow through it. Calculate ( 1 ) the resistance per unit length of the wire ( 2 ) the resistance of 2 m length of the wire ( 3 ) the resistance across the ends of the wire if it is doubled on itself
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When a potential difference of 2v is applied across a end of a wire of 5m length, a current of 1A is found to flow it. Calculate
1. resistance per unit length
2. resistance of 2m unit length
3. resistance across ends of the wire if is doubled on itself. ⇒
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