Lenz’s Law Worksheet
1.
A conducting rod moves to the right with a speed of 2.50 m/s on a U shaped conductor in
a uniform magnetic field of 1.20 T which is directed out of the page. The total resistance of
the entire circuit is 24.0 Ω. The rod has a mass of 1.50 kg and a length of 0.80 m.
a.
Determine the EMF induced in the conducting rod.
b.
Determine the magnitude of the induced current in the rod.
c.
Is the direction of the induced current in the U shaped loop clockwise or
counterclockwise? Briefly explain how you arrived at your answer.
d.
Determine the magnitude and direction of the force exerted on the rod.
A B D C 2.
Each of the loops in the diagram above are identical. Each has a length of 0.2 m, a width
of 0.06 m, and a resistance of 0.02 Ω. Each is moving with a speed of 0.30 m/s. Loops B, C,
and D each have 0.09 m of their lengths not in the magnetic field at the time shown in the
diagram. The magnetic field, B = 0.40 T, is directed into the page.
a.
What is the direction of the induced current for each loop at the instant shown in
the diagram?
b.
What is the magnitude of the induced current generated in each loop at the
instant shown?
c.
What is the magnitude and direction of the induced magnetic force experienced
by Loop C at the instant shown?