Which among the following is true - Vidyadip

MCQ

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)
✓
All

✓

Answer

Correct option: D.

All

d

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