NEETPhysicsCapacitance
Assertion (A): If distance between plates of charged and isolated parallel plate capacitor increases then force between plates decreases. Reason (R): Capacitance of a sphere is given by (4 ₀ R ). where (R ) is the radius of the sphere.
Options
- AIf both Assertion (A) and Reason (R) are True and the Reason ( (R )) is a correct explanation of Assertion (A)
- BIf both Assertion (A) and Reason (R) are True but Reason (( R ) ) is not a correct explanation of the Assertio
- CIf Assertion (A) is True but the Reason (R) is False.
- DAssertion (A) is False but the Reason (R) is True.
Correct answer
D. Assertion (A) is False but the Reason (R) is True.
Step-by-step solution
( aligned & F=q E & F= q q 2 A ₀ = q^2 2 A ₀ & F= same aligned ) So, Assertion is false but capacitor of sphere is We know (V= 1 4 ₀ q R ) (C= q 1 4 ₀ q R =4 ₀ R )