Recent content by Andrei0408

I'm not sure if it helps for what I'm looking, but I've calculated the mutual inductance, M, using the equation: M=U2/(ω*I1) = 106.3μH. I don't need the numerical value in particular, I just want to find a way to deduce the formula in order to calculate Z1. Thank you!

I'm not sure how to do that

Since the answer we're looking for should be -4.5V, I've observed that this could be -(0.6+3.9). So using this logic, u_D = E_0 and i_D * R = U_D0. Is this correct? EDIT: I think I may have understood: if the diode is OFF then the input voltage is negative, which is why u_l = -U_D0 - E_0, please...

Well, when the diode switches to its OFF state, the current should be 0, U_D should be negative, so we could replace the diode with an open circuit, since there is no current

I'm thinking I should apply Thevenin's Theorem to find the voltage, but I need to find I_D in order to be able to calculate U_S.

I've attached pictures with the circuit and part of the attempted solution. I've replaced the diode with its offset model and obtained the equivalent circuit in the 2nd picture. After applying KVL, I've obtained that u_l=−u_D−i_D*R. Since U_D0 is greater than 0, I've deduced that the diode must...

Sorry about the picture, could you tell me how to find V from this equation? I'm thinking about Ohm's law but I don't know the voltage through the 2 resistors

I think this is it, right? [Mentor Note -- Added improved version of dark picture]

I'm trying to grasp the basics here, we know Us = 70 V and I want to find out the currents I1 and I2 through the resistors R1, respectively R2. I just need the steps explained, not necessarily the results, please. Thanks in advance!

For the maximum we should have all the resistors connected in series, and for minimum they should be connected in parallel?

Thanks a lot, I think I understand now, I have 2 more questions if you don't mind: what is the maximum and the minimum value of equivalent resistance that I could obtain using all 3 resistors. (how should I make the drawings?)

Okay so, R1 and R2 are in parallel => R12 = 1 ohm. Will R12 be in parallel or in series with R3? Also, is the first one correct because there is a junction between R1 and R3 so they can't be in series, right?

R1 = 2 ohms ; R2 = 2 ohms; R3 = 1ohm First figure: I need to calculate the resistance between: a) A and C and b) A and B a) R1 and R3 are in series => R13 = R1 + R3 = 3 ohms R13 and R2 are in parallel => 1/Rp = 1/R13 + 1/R2 => Rp = 1.2 ohms b) Here, between A and B there is only R1 so the...

Yeah nevermind, it was very trivial, just had to multiply and derivate, for some reason I thought I needed something else