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A capacitor builds a charge and then discharges it, all at once, unlike a battery that will release it's charge slowly. To capacitate is to discharge an aggregate charge or volume and suddenly release it.
What else can I help you with?
What is force-current analogy mass is analogous to?
in FV analogy, mass is analogous to inductance
If it true that ac current can pass through the capacitor while dc current can not?
In case of DC: because the frequency of dc current is zero capacitive reactance ( Xc) = 1/2(22/7)fc f= frequency c=capacitence and when Xc=0 this implies that I=0 In case of AC: Xc >0 => I>0
A parallel plate capacitor has a plate separation of 1.0 mm How much potential difference can be placed across the capacitor before dielectric breakdown of air occurs?
You need more information than this to find your solution. There will be a a value for the electric field at which point the air will break down. you also need the area of one of the capacitors and the capacitence
Will capacitence be increased with increase in the charges?
Definitely not possible. Capacitance is given by an expression C = epsilon x A / d Since charge is not present the capacitance cannot be increased or decreased by the charge placed
2 capacitances are in parallel gives 6 micro farad and in series gives 25 what will be the value of individual capacitance?
Let K1 & K2 be the equivalent capacitence in series and parallel resp. if c1 and c2 b the values of capacitor we have 1/c1+1/c2=1/6 c1+c2=25 solving we get c1=10 MF c2 =15 MF or vice cersa
Why do some consider stastic electricity as a friction not a electricity?
Because without friction static electricity can't exist. As the friction occurs it builds up the potential in anything with any kind of capacitence until you give it a path to ground (i.e..your light switch or metal plate). That's when you get your telltale "snap". Hundreds even thousands of volts can be built up. No amperage however, otherwise our lives would be endangered every time we drug our feet across the carpet in slippers :)
Why does DC not flow through a capacitor?
Actually, neither d.c. nor a.c. current passes through a capacitor. A.C. current 'appears' to flow through a capacitor but, in reality, it is only flowing through the connecting circuit while what is known as a 'displacement current' (actually, a distortion of the atoms' shells rather than a conduction current) occurs within the dielectric separating the capacitor's plates. D.C. current is 'blocked' by a capacitor because, when the capacitor is fully charged, the potential difference appearing across its plates is equal and opposite that of the supply. With no net potential difference in the circuit, no current can flow.
What is the function of electrolytic cell?
The function of an electrolytic cell is to use electrical energy to cause a non-spontaneous chemical reaction to occur. This process involves passing an electric current through an electrolyte solution to produce a chemical change, such as the decomposition of water into hydrogen and oxygen gases.
