A parallel -plate capacitor with the plate area `100cm^2` and the separation between the plate `1.0cm` is connected across a battery of emf 24 volts .Find the force of attraction between the plates.
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A capacitor of capacitance C is charged by connecting it to a battery of emf epsilon. The capacitor is now disconnected and reconnected to the battery
From figure Net charge flow through battery = `=Q_("final")-Q_("initial")=epsilon C-(-epsilon C)=2 epsilon C` `:. ` work done by battery (W) `=QxxV=2 epsilon C xx epsilon =2 epsilon^(2)C` or Heat produced...
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A parallel plate capacitor of capacitance `C_(0)` is charged using a cell of emf `V_(0)`. Calculate the work done in reduc- ing the separation between
Correct Answer - (a) `-(1)/(4)C_(0)V_(0)^(2)` (b) `-(1)/(2)C_(0)V_(0)^(2)`
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A capacitor of capacitance C is connected to a battery of EMF E for a long time and then disconnected. The charged capacitor is then connected across
Correct Answer - `[(mu_(0)n CE)/(Delta t) (1 - (1)/(eta))]`
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A battery of emf 6 volts and internal resistance `1Omega` is connected in parallel to another battery of emf 8V and internal resistance `2Omega`. The
Correct Answer - `5/8`A
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A slab of copper of thckness t is thrust into a parallel plate capacitor of area A and plate separation d. What is the capacitance before and after th
Correct Answer - `(epsilon_(0)A)/(d),(epsilon_(0)A)/(d-1)`
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A parallel - plate capacitor of plate area `A` and plate separation d is charged to a potential difference `V` and then the battery is disconnected .
Correct Answer - decrease in energy is `(1)/(2)(epsilon_(0)AV^(2))/(d)((epsilon_(r)-1)/(epsilon_(r)));` energy is transferred to the agent introducing the slab
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A parallel-plate capacitor consists of two square plates of effective area A, length L and plate separation d. If one of the plates is turned through
Correct Answer - `(epsilon_(0)ALtheta)/(2d^(2))`
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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 plates of a parallel plate capacitor have an area of `100cm^(2)` each and area separated by 2.5 mm. the capacitor is charged to 200V. Calculate th
Correct Answer - `7.08xx10^(-7)J`
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A parallel-plate capacitor having plate are `100 cm ^2` and separation 1.0 mm holds a charge of `0.12 muC` when connected to a 120 V battery. Find the
Correct Answer - 11.3
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