- #1
Angie K.
- 108
- 1
Homework Statement
If the U-shaped conductor in the figure has resistivity ρ (in Ω.m), whereas that of the moving rod is negligible, find the current I at time t. Assume the rod has length L, starts at the bottom of the U at t = 0, and moves with uniform speed v in the constant magnetic field B shown in the figure. The cross-sectional area of the rod and all parts of the U is A (in m2). Express your answer in terms of the given quantities.
Homework Equations
I = magnetic flux / Resistance
Resistance = p*L/A where p is the resistivity
The Attempt at a Solution
I = B*A*v/p*(L/A)
The current is equal to the magnetic field times the Area times the velocity, divided by Resistance (which is the resistivity times the Length times the Area)
What am I missing here because that formula that I calculated is wrong?