00:02
In this session, we have capacitance c1 as 1 micro -ferred, so 1 into 10 to the power minus 6 ferret and c2 is 2 microferred, so 2 modelled by 10 to the power minus 6 ferret.
00:16
Initially, capacity c1 is uncharged, so we at 0 time is 0 volt, and capacitance c2 is charged with 150 volt, so we 2 at 0 time is equals to 150 volt.
00:32
So when switch is closed and equilibrium has been reached, then we can write v1 at infinity equals to v2 at infinity equals to v at infinity.
00:45
Okay.
00:46
So now we will write the conservation of charge equation.
00:50
So from conservation of charge equation we can write c1 v1 at 0 plus c2 v2 at 0 equals to c1 v1 at infinity.
01:02
Plus c2 v2 at infinity okay so from here we can calculate v2 at infinity or v infinity because v1 infinity and v2 infinity are equal to v infinity this will be equals to c2 v2 at 0 divided by c1 plus c2 as v1 at zero time is equals to zero so after putting values we get v at infinity equals to c2 is 2 into 10 to the power minus 6 and v2 is 150 divided by c1 is 1 into 10 to the power minus 6 plus c2 is 2 into 10 to the power minus 6 this will be equal in the unit of volt okay so now the value of v infinity from here will be equals to 100 volt so so, now energy at zero time or initial energy which is present only in the capacitance c2 as c1 capacitance is initially uncharged.
02:16
So u at zero time is equal to 1 by 2 c2 v2 at 0 square...