Assertion : Electric field outside the conducting wire accurate measurement.
Reason : The potential gradient for a potentiometer of accurate measurement.
Reason : Net charge on conducting wire is zero.

Options

A. If both assertion and reason are ture and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If assertion and reason both are false.

Answer

A

Explanation

(a) When current flows through a conductor it always remains uncharged, hence no electric field is produced outside it.