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  4. A parallel plate capacitor is charged and then isolated. On increasing the plate separation <th colspan=> Charge Potential Capacitance a. remains constant remains constant decreases b. remains constant increases decreases c. remains constant decreases increases d. increases increases decreases

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Q. A parallel plate capacitor is charged and then isolated. On increasing the plate separation
Charge Potential Capacitance
a. remains constant remains constant decreases
b. remains constant increases decreases
c. remains constant decreases increases
d. increases increases decreases

Electrostatic Potential and Capacitance

Solution:

Isolated capacitor $\Rightarrow Q$ = constant
separation d increase
$\Rightarrow C =$ decrease
$Q = CV \Rightarrow V =$ increase