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CBSE Class 12-science Answered

A capacitor blocks dc. Explain
Asked by ADITYA MATHEW | 15 Sep, 2014, 06:03: PM
answered-by-expert Expert Answer
We know that the Capacitive reactance of a capacitor is the obstruction offered by the capacitor to the change of voltage across an element.
And the capacitive reactance XC is inversely proportional to the signal frequency f (or angular frequency,ω) and the capacitance C.
 
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Answered by Jyothi Nair | 16 Sep, 2014, 09:23: AM

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CBSE 12-science - Physics
if breakdown voltage of each capacitor is 40v ,then maximum applied voltage Vmax will be
Asked by aishaisha091098 | 19 Apr, 2024, 04:54: PM
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CBSE 12-science - Physics
A parallel-plate capacitor has a plate area of 100c * m ^ 2 and a plate separation of 2.0 cm. has been charged up to 3000 V by a battery. Now, (i) after disconnecting the battery, (ii) keeping the battery connected, the distance between the plates is increased to 5.0 cm intensity of electric field between the plates and the energy of the capacitor. ( epsilon_{0} = 8.85 * 10 ^ - 12 * F * m ^ - 1
Asked by khankaifi178 | 08 Jan, 2024, 10:12: PM
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CBSE 12-science - Physics
obtain expression for force between plates of a charged parallel plate capacitor
Asked by bmahalik21 | 05 Mar, 2023, 08:23: PM
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CBSE 12-science - Physics
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Asked by s3043632 | 22 Jan, 2023, 06:45: PM
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CBSE 12-science - Physics
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Asked by ekanathtanpure77 | 23 Jun, 2022, 07:56: PM
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CBSE 12-science - Physics
Calculate the capacitance of a parallel plate capacitor of each plate of which is of area 50cm^2 and and they are seperated by a dielectric slab of thickness 2mm of dielectric constant.
Asked by manandhiman023 | 13 Jun, 2022, 01:52: PM
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CBSE 12-science - Physics
how the electric field b/w parallel plate capacitor comes out to be sigma/ۥ
Asked by yashrajgharte24.12dgatl | 06 Aug, 2021, 09:02: PM
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CBSE 12-science - Physics
Is the charge on two capacitors connected in series (one of them is filled with dielectric slab of constant K) same if they both are connected to battery having potential V ? If yes then please justify..
Asked by yashrajgharte24.12dgatl | 03 Aug, 2021, 03:31: PM
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CBSE 12-science - Physics
Calculate the capacitance of the following multi slab capacitor. 
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Asked by hitanshu04 | 21 May, 2021, 07:05: PM
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CBSE 12-science - Physics
1) What is the force experienced by a positively charged particle Q moving at right angle to an uniform electric field?  2) What is the effect on the charge on the plates of the capacitance on inserting dielectric in a parallel plate capacitors? 
Asked by hitanshu04 | 18 May, 2021, 07:05: PM
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