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ok anyways...1000ok iam goin to ask u ppl a very very simple Q which u ppl r goin to lough at me but since iam not a maths student so these basic things i forgot...
to change 7.8*10^3 cm3 to dm3 we have to divide it by 1000000 or 1000...
assalamoalaikum wr wb!ok iam goin to ask u ppl a very very simple Q which u ppl r goin to lough at me but since iam not a maths student so these basic things i forgot...
to change 7.8*10^3 cm3 to dm3 we have to divide it by 1000000 or 1000...
My last thing is that, I cant seem to get the graph of the ac wave before it enters the diodes for full wave rectification.umm...i didnt get what u meant
but wat i hav learnt wen ever we hav to change cm3 to dm3 we have to divide by 1000000 ...since its cubeassalamoalaikum wr wb!
divide it by 1000
it's ok
...
Firstly you ain't causing any trouble to me
no intermolecular forces.is total Ep energy zero for ideal gases and if yes then y?
ok...so 1 dm = 10 cmbut wat i hav learnt wen ever we hav to change cm3 to dm3 we have to divide by 1000000 ...since its cube
I understand now, but what was confusing me is that I was looking at the AC alternating voltage graph. For the first half cycle, voltage is positive, for the second half cycle, voltage is negative.Firstly you ain't causing any trouble to me
You know the function of the diode...right? it conducts only when forward biased..! not when reverse biased..
Now see..on the left hand side..the input changes...cuz it's alternating..so positive-negative-positive-negative...
but sincethe diodes which work chng...so the output remains the same...upper one always positive and the one below is always negatove ....
grey ones are reverse biased so don't work...
so in the end what we see is...no matter what the ac input is..negative or positive...2 of the diodes will be working..and we'll have the output...so full wave rectifier...
, due to your efforts with me. Jazak Allah Khairan and May Allah make the exam easy for you and increase blessings in your time.
they do...
Because the half life is very long that it seems as if no (or negligible) nucleus are decayinghttp://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w06_qp_4.pdf Q8 b..PLZ EXPLAIN! why isnt anyone asnwering my questions?
i think you're still confused...I understand now, but what was confusing me is that I was looking at the AC alternating voltage graph. For the first half cycle, voltage is positive, for the second half cycle, voltage is negative.
I was confused how the diodes conduct during the negative half cycle, but it seems from the diagram, that the polarity changes, so with respect to the diode it is not a negative half cycle anymore. Can you sniff my little piece of problem? But anyways , they wont ask us such details in Alevels atleast. I feel embarrassed to ask you more
don't look at the graph ....look at the circuit and see what happens...although input is changing...polarity at the output is not..right?
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