Homework Statement
A compas needle points 20 degrees East of North outdoors. However, when it is placed 8cm to the east of a vertical wire inside a building, it points 55 degrees east of north. what is the magnitude and the direction of the current in the wire? the Earth's field is 5.0E-5...
thanks so much! that makes a lot more sense now. i couldn't figure out the paths, and tried almost everything.
i am at boulder high, just down the street.
Homework Statement
Determine the magnitude and directions of the currents through r1 and r2 in the diagram below.
Homework Equations
V=IR
here is the schematic, i hope you can get the idea of the circuit from it:
The Attempt at a Solution
so i found the current through r2...
so i have some questions on how to set up this one problem on my homework.
Here is the problem:
A person sees a heavy stone strike the concrete pavement. A moment later, two wounds are heard from the impace: one travels through the concrete and the other through air, and the sounds are heard...