1.1. Higher Tier Only

The coil in Figure 1 is rotating. 

Figure 1

State the name of the phenomenon causing this rotation.

1.2. Higher Tier Only

Using Fleming's left hand rule, state the direction that the left side of the coil moves in Figure 1.

1.3. Higher Tier Only

A current of 2.5 A flows in the coil, which is 0.10 m long and 0.10 m wide.

If the magnetic flux density is 0.10 T, calculate the force on the left side of the coil.  

   Force = .................................... N

1.4. Higher Tier Only

Explain why a force acts on the coil when a current passes through it.