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A piece of wire having of 5 ohm cut into five equal parts. If the five parts of the wire are connected in parallel, then find the effective resistance of the combination |
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Answer» ➧ Resistance of a piece of wire is proportional to its length. A piece of wire has a resistance R. The wire is CUT into five equal parts.➧ Therefore, resistance of each part➾ R/5➧ All the five parts are connected in parallel.∴equivalent resistance (R') is given AS1 / R'➾ 5 / R + 5 / R + 5 / R + 5 / R + 5➾ 5 + 5 + 5 + 5 + 5 / R➾ 1 / R' = 25 / R➾ R / R' = 25 ...✔Explanation:please Mark as the answer of the BRAINLIST |
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