The four separate figures below involve a cylindrical magnet and a tiny light bulb connected to the ends of a loop of copper wire. The plane of the wire loop is perpendicular to the reference axis. The states of motion of the magnet and of the loop of wire are indicated in the diagram. Speed will be represented by  and CCW represents counter clockwise.

In which of the following situations will the bulb light up? 

Two parallel wires I and II that are near each other carry currents and both in the same direction. Compare the forces that the two wires exert on each other.

Which of the following is true:

The magnetic field made by the bar magnet at one location is shown by the arrow on the diagram below:

At the point in space marked by the “x”. What is the direction of the magnetic field? 

The magnetic field made by the bar magnet at one location is shown by the arrow on the diagram below:

At the point in space marked by the “x”. What is the direction of the magnetic field? 

A proton is initially at rest in a region of constant magnetic field (shown below). There are no other charges present.

Which of the following is correct?

 A moving electron with charge  travels along the path shown and passes through a region of electric field. There are no other charges present. The electric field is zero everywhere except in the grey region.

Which of the following is correct? The direction of the electric field is: 

Here are two charges of equal magnitude but opposite signs, separated by a distance .

At the point in space marked by the “x”. What is the direction of the field? 

Here are two charges of equal magnitude but opposite sign, separated by a distance .

At the point in space marked by the “x”. What is the direction of the field? 

Which of these statements best describes the forces acting on a satellite in orbit around Earth?