Recent content by sonutulsiani

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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...

Can't we solve it by separating the real and imaginary parts both on the left and right hand side of the equation?

I didn't understand what you said.

Ix and Iy are currents. Do you know how to solve?

We use j instead of i in circuits. And 3i is written as j3. It means the same.

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'

like for energy in a capacitor its used

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

But what does net charge mean? It means that all the charges present inside are equal to 0 in this case right?

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...