Lenz law problem wire and expanding loop
Homework Statement
The loop has current radius R the red bar moves at velocity V. The distance the wire is from the loop is d and the top of the loop is length l Find the induced emf and the direction of the current in the loop.
Homework Equations...
Homework Statement
Find the magnetic field at the point (the big dot in the picture)
The curve is supposed to be a quarter circle and both wires are parallel and radius is R
the wires are infinitely long
Homework Equations
Biot-Savart Law...