Question
Physics Question on electrostatic potential and capacitance
A parallel plate capacitor having cross-sectional area 'A' and separated by distance 'd' is filled by a copper plate of thickness b. its capacitance is :
A
ε0A/2d
B
ε0A/d-b
C
2ε0A/d+b/2
D
ε0A/d+b/2
Answer
ε0A/d-b
Explanation
Solution
The correct answer is (B): ε0A/d-b