Having Trouble with Electromagnetism Assignment?

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A second-year undergraduate student is seeking assistance with an Electromagnetism assignment due to difficulties with specific questions. The student has posted images of the assignment questions for reference. Forum members emphasize the importance of attempting the problems before seeking help, encouraging a proactive approach to learning. The discussion highlights the collaborative nature of academic forums, where users are expected to contribute their efforts. Engaging with the material is essential for effective assistance.
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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
 
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