Recent content by snir

I want to find a simple arranged of total impedance on the different circuit 1 (all R) and 2 (with the C and L). in case 1 told me that R4 and (R1+(R2||R3)) as parallels. and in case 2 impedance R1 and impedance C is series. but I think about it if I will connect something to the Terminals...

hi; When I study - if we want to connect impedance in the case of: - we connect the R4 and (R1+(R2||R3)) as parallels but when we want the get impedance of C and R of the right: - we connect that as series: Z(of C)+R .. why the different? please help!

Thanks for I can understand where I put the EMF I founded, if the coil was at the left circuit? the EMC need to be V if I want no current at middle? and if I have a circuit like I made (new image) . I can know where to put the DC for replace the coil?

sory If not understand the meaning of EMF. the EMF not mean that all the voltage of all R in the right-hand loop will down the same ? .. if we make the EMF like battery the ratio of the generated change between the right R.

TY! but I can also said that if I made it on middle that will generated around the whole right-hand loop also. no? and also - now .. they move the coil to the side left, between the R. now we can get a EMF cancel the current at the middle? may that will EMF = v ?

ok thanks but why we can't say that the counter-EMF is not on the middle wire? like a another battery at the middle - than when we do so the answer is changes.

the voltage on the middle is 1/3V so I confused

I have DC voltage, and the current of coil is x*t (t is time), the flux is a^2*B (B I wrote), now I can derivative it and get the EMF. but what the EMF need to be? -v or -v/3. that depend where I put the EMF on the circuit.

yes.

that mean we can use that the magnet field is just inside the coil and the magnet field is: µ0 *n*(xt) - n is the density . (I forget that we know what the n). the EMF * I mean for Electromotive force form Faraday's law.

Homework Statement If I have the circuit below, and the white circle is Infinite Coil with current of I=xt, Counterclockwise, with a radius a. from Faraday's law we know that will be Electromotive force . 2. Homework Equations what the EMF in needed to stop the current at the middle R ? The...