I know what the answer is to part A but not part B

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil

What will happen in a hybrid vehicle if current flow becomes too high due to a short?

The applied force of 3 washers will increase the applied force on the car to n.