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प्रश्न
Two copper wires can have different resistivity if they have different ______.
पर्याय
lengths
temperatures
MCQ
रिकाम्या जागा भरा
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उत्तर
Two copper wires can have different resistivity if they have different temperatures.
Explanation:
Resistivity is an intrinsic property of the material itself and is independent of the wire’s physical dimensions (like length or cross-sectional area). For metals like copper, resistivity increases as the temperature rises. Therefore, two copper wires will only exhibit different resistivity if they are at different temperatures.
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