test2_309Lspring10 - PHYSICS 309L, TEST 2 1) - By what...

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

View Full Document Right Arrow Icon
PHYSICS 309L, TEST 2 1) - By what distance must two currents of +330 A each be separated so that the force per unit length between them is 10 - 2 N/m . - In order for this force per unit length to be repulsive, how should the two currents be flowing? 2) A coil with 250 loops of conducting wire is subject to a magnetic field that went from 0 T to 1 T in 0 . 1 s . - What is the change of the electric potential induced by the changing magnetic field? - In words what can you say about the direction of the current induced in the loops? (hint: the direction of the induced current must be such that. ..) 3)What is the resistance of a 60
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/20/2011 for the course PHY 309L taught by Professor Sai during the Spring '08 term at University of Texas at Austin.

Ask a homework question - tutors are online