The diagram below shows a suspended uniform beam of weight 4N in equilibrium under the action of the force shown. The weight of the magnet is 8N.
![Suspended uniform beam of weight](https://www.easyelimu.com/images/form_4_past_papers/Term_3_2021/Mocks_/physics/Suspended_uniform_beam_of_weight.png)
- Name the pole X.
- Indicate on the diagram all the forces acting on the beam.
- Calculate the force exerted by the electromagnet.