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Two parallel plate capacitors X and Y ha...

Two parallel plate capacitors X and Y have the same area of plates and same seperation and air between the plates while Y contains a dielectric medium of `in_r=4`

Calculate capacitance of capacitor if equivalent of the combind system.

Text Solution

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`C_x=(4epsilon_0A)/(d)C = 4 C ` then `C_y=(4epsilon_0A)/(d)C = 4C `
For series combination of Cx and Cy
`1/C=1/C_x+1/C_y`
`implies1/4=1/C+1/(4C)=5/(4C)impliesC=5 muF`
`:.C_x=5muF and C_y=4xx5=20muF`
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