The first one is=-2
The second has the same polarity, and it has a rise of potential
For the third, it has the same polarity and it has a rise of potential.
that's correct?
According to the Kirchoff's law of voltages:
RT=6 ohms
VT=?
-2+3-2I+5-4I=0
6+-6I=0
6I=6
I=6/6=1A
is the result right? I have some doubts in the signs of the voltages.
I know that the sum of the currents in the circuit must be equal to zero and that the algebraic sum of the voltages must be equal to zero, I know this because I am self studying this topic, bue I don't have idea of the procedure to follow.
Homework Statement
Hello, can you help with this problem.
For the next circuit, determine the voltages
Homework Equations
I=V/RT
RT=R1+R2+R3+...+Rn
P=V^2/R
V=V1=V2=V3
I=V/R
GT=1/R1+1/R2+1/R3+...+1/Rn
The Attempt at a Solution
My background is that I only know a very few and I don´t know how to...
Homework Statement
Find the current for the next circuit. Consider the values given:
V1= 2 V, V2=3V, V3= 5V, R5= 4Ω Y R4= 2Ω
Homework Equations
RT=R1+R2+R3+Rn
I=V/RT
P=VI=V^2/R
The Attempt at a Solution
My attempt of solutions is to sum the first two voltages and divide it between the first...
Homework Statement
Solve the next circuit to find the voltages
Homework Equations
I=V/R
GT=(1/R1)+(1/Rn)
V=V1=V2=V3
The Attempt at a Solution
My background is that I know that in a parallel circuit, the voltage for each component is the same and electric current it's equal to the sum of the...
Another question, this method only applies in cases similar to this one, cases in which the probability is less than one? In a case when I already have the probability equal to one, do I only need to evaluate the function in the intervale (a,b) or I have to do another procedure?
Ok, so now I have the answer for the two questions. And for example, if I want to make a chart with the probability of the values of x, in that case, do I need to evaluate, or what I have to do?
The formula for probability function is ##f(x) = Cx/4## ##f(x)=2x/4##
F(x) would be ##x^2/4## and for evaluate do I need to substitute x vith the values (0,1 and 2)?
Am I correct?
My background is that I know a little about integral calculus, I can do some indefinite integrals, I am working with the notes of my older brother and I only have the exercise but not the answer or procedure. About probability, these are my first steps on the subject and I´m doing this because I...
Ok please, can you explain me in more detail? I'm a little confused about the topic and for your information I'm 17 y/o, so please take this into consideration.
I don´t know how to explain the reason, but the function is like it were incomplete, so the first step is to find the correct function, right? How can I do that? Or what are the steps?
Homework Statement
For the next probability function: f(x)=x/4 for 0<x<2
Homework Equations
a) Get the probability function
b) Get the cumulative distribution function
The Attempt at a Solution
I don´t know if the problem is well written, and for that I'm lost with the first question...
I've tried to solve it by using a factorization, but I get lost on the next steps, and I don't know how to do it exactly. I attach a file with my attempts (I don´t know if I am correct or not).
Homework Statement
Hi!
Does anyone know how to solve the inverse of these functions?
y=(4x^2+2x-2)/(8x^2-4x+6)
y=(x+1)/(x^2)
Sincerely, I would appreciate your help with these exercises.
The Attempt at a Solution
For the first one: 8yx^2-4xy+6y=4x^2+2x-2
For the second exercise:
yx^2=x+1...