Question

Assertion : The total charge stored in a capacitor is zero.
Reason : The field just outside the capacitor is $\frac{\sigma }{{\epsilon }_0}$. ($\sigma$ is the charge density)

• A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
• B. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
• C. If Assertion is true statement but Reason is false
• D. If both Assertion and Reason ale false statements.

Answer 1

The correct option is C If Assertion is true statement but Reason is false

Charge stored on the two plates are + Q and -Q = Q + (-Q)=0 and hence statement A is true.The field however, outside the plates is zero.
Draw a Gaussian surface ABCD as shown. The field $E$ is uniform on faces AD and BC

${\int }^{}E.ds=0$ yields $E=0$