AP Physics C 2017

(^1) If you’re not too impressed by these representations, just remember how physicists like to draw refrigerators. There’s a reason why these
science folks weren’t accepted into art school.
(^2) You could also figure out the force on the left wire by using the same method we just used for the force on the right wire: draw the
magnetic field produced by the right wire, and use the right-hand rule to find the direction of the magnetic force acting on the left wire.
(^3) But the calculus version of the induced EMF formula states: . If you’re given magnetic flux as a function of time, then take
the negative time derivative to find the induced EMF.
(^4) “Yes.”
(^5) Which had first been accurately measured in the late 1600s using observations of the moons of Jupiter.