- #1
rikinmathur
- 1
- 0
Homework Statement
Three long, straight wires are carrying currents that have
the same magnitude. In C the current is opposite to that
in A and B. The wires are equally spaced. Each wire experiences a net force due to the other two wires. Which
wire experiences a net force that has the greatest magnitude?
A =====>====
B=====>====
C=====<====
Homework Equations
FAB = μ°I1 I2 / 2∏d
The Attempt at a Solution
It says that the answer is B because 2I squared / d is the net force on B. But the way I am doing it is -I^2/d + I^2/d = 0, hence the net forces cancel out and the force on B is zero. I don't understand how it is 2I^2/d. Please help.