Electrostatics Question 553
Question: Four plates of the same area of cross-section are joined . The distance between each plate is$ d $ . The equivalent capacity across A and B will be
Options:
A) $ \frac{2{\varepsilon _{0}}A}{d} $
B) $ \frac{3{\varepsilon _{0}}A}{d} $
C) $ \frac{3{\varepsilon _{0}}A}{2d} $
D) $ \frac{{\varepsilon _{0}}A}{d} $
Show Answer
Answer:
Correct Answer: B
Solution:
The given arrangement is equivalent to the parallel combination of three identical capacitors.
Hence equivalent capacitance $ =3C=3\frac{{\varepsilon _{0}}A}{d} $
