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...
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?