Quiz_A

Quiz_A - e nowhere-2Q For the net force to be zero the two...

This preview shows page 1. Sign up to view the full content.

Physics 241 – Sample Quiz A – Jan. 8, 2008 Two point charges are separated by distance d as shown. Where can you put a third charge of 1 C so that there is no net electric force acting on it? (Take Q > 0.) a) to the right of charge -2Q b) to the left of charge Q c) between the two charges d) some other place
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: e) nowhere-2Q For the net force to be zero, the two contributions (from interacting with Q and with -2Q) must exactly cancel. Since the -2Q charge is of bigger magnitude, the only place this can happen is to the left of Q where Q is closer to the third (test) charge than -2Q....
View Full Document

This note was uploaded on 07/29/2008 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue.

Ask a homework question - tutors are online