Answer
$2.8kV$
Work Step by Step
The breakdown potential of capacitor is :
$=(14 k \frac{V}{mm})(3.8 cm-3.6 cm)$
$= 2.8kV$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.