AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Magnetic field

E&M review

Subject: 
Rating: 
0
No votes yet

Physics C Electricity& Magnetism Review Charge Net ? charge: excess electrons Net + charge: excess ?holes? SI unit: coulomb (C) Quantum of charge: the proton charge (e) the electron charge (-e) e = 6.02 ? 10-19Coulombs Conservation of Charge The net charge in any process or reaction remains unchanged. Coulomb?s Law Calculates magnitude of force between charges Force is repulsive if charges have the same sign. Force is attractive if charges have opposite signs. F = kq1q2/r2 F: force (N) k: constant 9.0 ? 109 N m2/C2 q1, q2: charges (C) r: distance between charge centers (m) NOTE: k = 1/(4??o) where ?o = 8.85? 10-12 C2/ N m2 Multiple Forces on a Charges Ftot = ? Fi

Physics AQA GCSE A/A* Revision Notes

Subject: 
Rating: 
0
No votes yet

Physics-p3 1.1 X-Rays Part of the electromagnetic spectrum; they have a high frequency and short wavelength. X-rays are used to form images of bone on photographic film to check for fractures and dental fractures. This is done because they are transmitted by healthy tissue and absorbed by bone. X-rays affect photographic film in the same way as light. Charge-coupled devices (CCDs) are used to form electronic images of the body. X-rays are used to make images and CT scans (cross sections through the body). They are also used to destroy tumors at or near the body surface. Precautions must be taken when using X-rays as they cause ionization and can damage living tissue. Workers should wear film badges (to monitor exposure) and use lead screens to shield them when possible.
Subscribe to RSS - Magnetic field

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!