A parallel-plate capacitor contains a mica sheet (thickness `10^(-3)`m) and a sheet of fibre (thickness `0.5xx10^(-3)`m). The dielectric constant of mica is 8 and that of the fibre is 2.5. Assuming that the fibre breaks down when subjected to an electric field of `6.4xx10^(6)Vm^(-1)`, find the maximum safe voltage that can be applied to the capacitor.
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You have been given a parallel plate air capacitor having capacitance C, a battery of emf `epsilon` and three dielectric blocks having dielectric cons
Correct Answer - Insert dielectric with constant `k_(1)`, connected the battery, disconnected the battery and remove the dielectric. `U_(max)=(1)/(2)K_(1)^(2)V^(2)C`
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In a parallel plate capacitor the separation between the two plates is maintained by a dielectric of dielectric constant K and thickness `d`. The diel
Correct Answer - `Delta C ~= (C_(0)K^(2)V^(2)in_(0))/(2d^(2)Y)`
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A parallel-plate capacitor is made up of 15 strips, each of 6 cm `xx` 4 cm, separated by sheet of mica of dielectric coefficent 6 and constant thickne
Correct Answer - `0.0119muF`
2 Answers 6 views
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Correct Answer - `0.00398muF`
2 Answers 1 views
parallel plate capacitor is filled by a dielectric whose dielectric constant varies with the applies voltage (V) as K = 2V. A similar capacitor with n
Correct Answer - 6 volt
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Between the plates of a parallel-plate capacitor there is a metallic plate whose thickness takes up `eta = 0.60` of the capacitor gap. When that plate
Correct Answer - (a)`-0.15mJ` (b) `0.15mJ`
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The space between the plates of a parallel plate air capacitor is filled with an isotropic dielectric medium of which dielectric constant varies in th
Correct Answer - `(epsilon_(0)pi k_(1)A)/(2d)`
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The plates of a parallel plate capacitor are separated by a distance `d = 1 cm`. Two parallel sided dielectric slabs of thickness `0. 7cm` and `0.3cm`
Correct Answer - (a) `5xx10^(4)V//m`, `3xx10^(4)V//m`; (b) `35//9`
2 Answers 1 views
A parallel-plate capacitor of consists of 26 metal strips, each of 30 `cmxx4cm`, separated by mica sheets of dielectric constant 6 and uniform thickne
Correct Answer - `7.97xx10^(-9)F`
2 Answers 1 views
A parallel-plate capacitor of capacity `0.5pF` is to be constructed using paper sheets of thickness 0.04 mm as dielectric. Find how many circular meta
Correct Answer - 73
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