Question

An ac circuit consists of a voltage source
v=200sin120πt and a 6μF capacitor in series. Calculate the current established in the circuit

Answer 1

can i give u an attachment for ur solution

Answer 2

u r most welcome

Answer 3

That's another, kinda similar...

Answer 4

You should be able to solve this one on your own then :P

Answer 5

If any voltage source has frequency f, and amplitude Vo
what is the expression for instantaneous velocity?!

Answer 6

i mean instantaneous voltage?

Answer 7

\[V=V _{0}Sin(2 \pi ft)\]

Answer 8

so you have the frequency..
the only thing you need to evaluate is Vo..
the voltmeter reads 240V.. which has to be an AC voltmeter
THOSE ARE YOU CLUES :P

Answer 9

i think Vrms=240volt.

Answer 10

@shamim congratulations.. you gave away the most important part of the question .. !! :-/
!

Answer 11

Vrms=0.707Vo

Answer 12

@shamim Thats enough :O.. let him do the problem :O :O : O!!

Answer 13

ok @Mashy

Answer 14

thanks @d3Xter

Answer 15

you are kidding right o.O

Answer 16

\[I = \frac{ d }{ dt}\left\{ 6 \times 10^{-6} \times 200\sin (120 \pi t) \right\}\]

Answer 17

i don't understand.. what exactly do you have to find out?

Answer 18

and how did you get that expression?

Answer 19

From \[Q=CV\]

Answer 20

ok ok.. just take the derivative!

Answer 21

Then
\[I = \frac{ dQ }{ dt }\]

Answer 22

I've done that already.

Answer 23

ok.. and that is not the correct answer?

Answer 24

How do I simplify further

Answer 25

there is no further simplification.. that is the expression for instantaneous current o.O

Answer 26

\[I=0.144 \pi \cos120 \pi t\]

Answer 27

you can't further simplify that :O

Answer 28

Oh. that is the RMS value .. the DC equivalent!.. stupid teacher should have mentioned that in the question.. go all gangstaaa on your teacher xD