Physics, 24.06.2021 19:30 joeylozier15
Find the ratio of the diameter of copper to iron wire, if they have the same resistance per unit length (as they might in household wiring). dCu dFe =
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In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.
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State the right hand rule of the direction of magnetic field in a conductor carrying current
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In a system, when potential energy decreases, then entropy also decreases. true false
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Find the ratio of the diameter of copper to iron wire, if they have the same resistance per unit len...
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