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NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
- S.I. unit of conductance is
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- The resistance of a conductor depends on its
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- The reciprocal of conductivity is called as
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- A conductor of length l and area of cross-section A has a resistance R...
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- The resistance of the material of unit length and unit area of cross s...
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- S.I. unit of specific resistance is
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- When the length and area of cross-section both are doubled, then its r...
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- The specific resistance of all metals is most affected by
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- If 'n' is the number of free electrons in a metallic wire, then the re...
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- The example of an ohmic conductor is
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- The example for non- ohm ice resistance is
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- A metal wire of cross-sectional area 1m m^(2) contains 5xx10^(22) elec...
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- A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2)...
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- If a wire of resistance 25Omega is uniformly stretched until its lengt...
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- The resistance of a wire is 2 Omega. The wire is stretched to doubel i...
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- A certain piece of copper is to be shaped into a conductor of minimum ...
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- A wire of 50 cm long, 1mm^(2) in cross-section carries a current of 4 ...
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- Two wires of the same metal have same length, but their cross-sections...
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- A metallic wire carries a current of 100 A , its area of cross section...
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- A wire 1m long has a resistance of 1 Omega. If it is uniformly stretch...
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