Hi
Please have a look on the attachment. Please help me with the query. Thanks a lot.
Regards
PG
Please have a look on the attachment. Please help me with the query. Thanks a lot.
Regards
PG
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Actually, if XL=Xth, then RL=Rth. If you substitute eqn. 17 into eqn. 18 then it automatically follows.Hi
Please have a look on the attachment. Please help me with the query. Thanks a lot.
Regards
PG
You're welcome.Thank you.
I'm sorry ... It's not that I haven't asked such dumb questions before!
Actually, you haven't asked any question as dumb as that.
Double check your complex math calculation. Magnitude squared is indeed found by multiplying by the complex conjugate. But, the answer always comes out to a real number, if you do the math without errors.Hi
Please have a look on the attachment. Please help me with the query. Thank you.
Regards
PG
It's not clear to me how you are trying to calculate the power in the capacitor. If you trying to calculate average real power, then you must realize that the voltage and current are always 90 degrees out of phase in either a coil or a capacitor. If you do out the integral for average power over one period, you'll see that the 90 degree phase shift results in the product of voltage and current forming a symmetrical function above and below the time axis. Hence, the integral is zero. So, reactive components (coils and caps) have only reactive power and no real power. Reactive power is just a case of power flowing out and then flowing back in over the course of a period.Hi
Please have a look on the attachment. Please help me with the query. Thank you.
Regards
PG
So, what are questions Q1 and Q2? I think you pointed to the wrong page.
For AC, direction is ambiguous. With DC, the idea of direction is clear. The electrons either always flow one way or the other way. With AC, electrons flow in both directions. In some sense direction is meaningless, or at least it is relative to something else. However, we can develop the notion of abstract direction by using the angle as the definition of direction. Here we demand that the magnitude is positive, and the resulting angle is the direction. If magnitude is negative, then make it positive and add or subtract 180 degrees from the angle. That angle is the direction.Hi
Please see the attachment. Thanks.
Regards
PG