Homework Statement
A long, straight wire carries a current of 1.7 A in the +z direction and lies along the line x = –3.0 cm, y = 0. A second such wire carries a current of 1.7 A in the +z direction and lies along the line x = +3.0 cm, y = 0, as shown in Figure. Find the magnetic field at a...
HEy it's the way we write in circuits. I am looking for the same thing, how do you solve equations involving complex numbers by hand? My calculator doesn't do it.
So according to his equation, it means:
(3+4i) Ix - 4i Iy=10-------------(1)
(2-4i) Ix +2i Iy=0---------------(2)
And it's not a...
Yes it does keep on increasing. It doesn't stop. But I am not sure if it's faster and faster or not. I know it keeps getting bigger. So it's unbounded? And what about (a) increasing?
Homework Statement
Consider the sequence.
http://www.webassign.net/cgi-bin/symimage.cgi?expr=a_n%20%3D%204%20n%20%2B%201%2Fn
(a) Determine whether the sequence is increasing, decreasing, or not monotonic.
(b) Is the sequence bounded?
Homework Equations
The Attempt at...
Apparently my textbook writes potential energy of 2 point charges is u=qv
and electrostatic potential energy is u=1/2qv. What is the difference between them other than the word 'electrostatic'
Homework Statement
Ok I am really confused!
Sometimes we use u=qv to find the potential energy
and sometimes u=0.5qv
Which one is correct?
Homework Equations
u= electro static potential energy
v= voltage
q is charge
The Attempt at a Solution
Homework Statement
I have a simple question.
There is positive point charge in the center of a sphere 2.5 micro c. The spherical shell has inner radius of 60 cm and outer radius of 90 cm. The net charge of the spherical shell is equal to zero.
Homework Equations
The...
Hey tell me one thing.
To find r<R we integrated it from 0 to r. How do you know that?
I mean E inside a sphere is sometimes 0 also, when there is no charge inside a sphere.
In this question it doesn't say if the charge is uniformly distributed or if it's inside the sphere. It only says the...