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Which among the following is true
  • A
    An alloy of very low resistivity is used to verify ohm's law
  • B$\vec E = \rho \vec J$ is the statement of ohm's law ($E \to $ electric field, $J \to $ current density)
  • C$V = IR$ can be applied to all material ($V$ is $P.d.$ across material $R$ is resistance and $I$ is current through material)
  • D
    All
Medium
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