A capacitor is made of a flat plate of area A and a second plate having a stair-like structure as shown in figure. The width of each stair is a and the height is d. Both plates have the same width perpendicular to plane of paper. Find the capacitance of the assembly.
Text Solution
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CHECK THE SOLUTION.
( 
)
Sol.
This is combination of 5 capacitors connected parallel.
C = C 1 + C 2 + C 3 + C 4 + C 5 = 
+ 2 
+ 2 
= 
= 
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