Help with electromag questions

[midas_touch]

Hi, this is my first post in these forums. I'm a second year undergrad student that is currently undertaking a subject in Electromagnetism and I'm having troubles with some questions for an asignment I am doing now. Any help/assistance with the questions that I've posted below will be much appreciated. Thanks.

Edward.

http://img261.imageshack.us/img261/1219/electromag1mk3.jpg

http://img528.imageshack.us/img528/3104/electromag2nb4.jpg

 

[Redbelly98]

Welcome to PF!

What have you attempted so far? We don't give out help unless you try first.

 

[baba89]

Hi Edward,

Thank you for reaching out for help with your electromagnetism questions. I understand the challenges that come with studying complex subjects like electromagnetism. I would be happy to provide some guidance and assistance with the questions you have posted.

Before I dive into the specific questions, it's important to have a solid understanding of the fundamental principles of electromagnetism. This includes understanding concepts such as electric and magnetic fields, electric potential, and Maxwell's equations.

Now, let's take a look at the first question. It appears to be a problem involving a charged particle moving in a magnetic field. To solve this problem, you will need to use the Lorentz force equation, which describes the force on a charged particle in a magnetic field. Remember to pay attention to the direction of the magnetic field and the velocity of the particle.

The second question seems to involve a circuit with resistors in series and parallel. To solve this, you will need to use Ohm's law and the equations for calculating equivalent resistance in series and parallel circuits. It may also be helpful to redraw the circuit and label the different nodes and branches to simplify the problem.

Overall, my advice for tackling these types of problems is to first understand the underlying principles and equations, and then carefully read and analyze the given information. Don't be afraid to draw diagrams or make assumptions to simplify the problem. Also, double check your calculations and units to ensure accuracy.

I hope this helps and good luck with your assignment! Don't hesitate to reach out for further assistance if needed. Keep up the hard work and determination in your studies of electromagnetism. It is a fascinating and important field in science and engineering.