Assertion : The current density $\vec J$ at any point in ohmic resistor is in direction of electric field $\vec E$ at that point.
Reason : A point charge when released from rest in a region having only electrostatic field always moves along electric lines of force.
A
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
B
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
C
If Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.
AIIMS 2016, Medium
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C
If Assertion is correct but Reason is incorrect.
c From relation $\vec J = \sigma \,\vec E$, the current density $\vec J$ at any point in ohmic resistor is in direction of electric field $\vec E$ at that point. In space having non-uniform electric field, charges released from rest may not move along $ELOF$. Hence Assertion is correct while Reason is incorrect.
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