IB Physics: Fields & Test Charges

Explains the concept of a test charge. 150+ free and 60+ exclusive videos. 10% of proceeds to charity. Goto patreon.com/cdoner to watch exclusive videos and more, or click JOIN to become a member of C. Doner’s IB Physics Youtube Channel. Level/Tier 1: $1.99 per month gives you access to a google sheet with a full updated, well organized, linked listing of all the videos and other resources such as notes, worksheets and solution sets. Level/Tier 2: $4.99 per month gives you access to new videos. The new videos include IB style multiple choice and problem solving questions with full explanations, previews/reviews of the course content, and updates to the video lessons. After becoming a member or patron, go to bit.ly/donervidlist and request access to the video listing. "I would just like to say a massive thank you to you for uploading your videos. I started the IB [and]decided to try HL Physics as it seemed interesting. It turned out to be very far from my forté and I was consistently getting 3s and 4s in tests and mock exams. So a few months before the exam period of this year, I began to panic...Then I discovered your channel. For four weeks prior to paper one, I virtually worshipped your videos, and worked along to them in my 'Big Book of Revision.' Last week, I received my results. Incredibly and almost unbelievably, I obtained a 6 in HL Physics. Not only that, but I was 3 marks off a 7." Table of Contents: 00:00 - Test Charge 01:42 - Test Mass 05:05 - Configuration of Charges 09:23 - Examples 15:27 - Summary