Recent content by pizzico85

Calculation of probability with arithmetic mean of random variables There are 4 people, each of whom has one deck of cards with 500 cards that are numbered from 1 to 500 with no duplicates. Each person draws a card from his deck and I would like to calculate the probability of the event that...

No too much help.

OK, maybe voltage across R should be the following: Since R = R1 = R2 = R3 I = I1 = I2 = I3 Then Vr = V1 = V2 = V3 = R * I = 12 Ohm * 1,52 A = 18,24 V Now I should be able to use Kirchhoff for tensions in the mesh where the voltmeter V is present, this way (V12 refers to the voltage of the...

OK, the line current going into the box should be the following: Since Q = sqrt(3) * V * I * sin(phi) cos(phi) = 0,8 => phi = 36,87° Then I = Q / ( sqrt(3) * V * sin(phi) ) = 1,52 I = I1 = I2 = I3 because the load is balanced without considering R'. Is it correct? If so, how should I proceed?

My thoughts are that I don't know how to calculate V' or I'. I am completely in trouble. I would like to understand how to proceed step by step to solve the problem.

Hi all, I am new to this forum and I hope you can help me. I have the following three-phase system where I have to evaluate the indication of the wattmeter W. Available data is: V = 380 V, R = 12 Ohm, R' = 120 Ohm. Can you make me understand the process for obtaining W?