2023
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A 1.5 m length of incredibly thick wire has a cross-sectional area 5.0 m2. When the potential difference across its ends is 0.20 V, it carries a current of 0.40 A. The resistivity of the material from which the wire is made is
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6.0 m
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1.7 m
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1.1 m
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9.4 m
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Explanation:
Detailed explanation-1: -So, the resistivity of the material is equal to 3. 14×10−7−m.
Detailed explanation-2: -Answer: Resistance of wire = 25 Ohm.
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