Question

The North and South Poles of two magnets are attached to each other. A student pulls the pulls apart and holds him at a distance of 10 cm. How does the energy stored in the system change? (1 point)
The energy stored in the system does not change.
The energy stored in the system first increases then decreases.
The energy stored in the system increases.
The energy stored in the system decreases.

Answer 1

The energy stored in the system increases — work must be done against the attractive force to separate the opposite poles, raising the magnetic potential energy.