The eletrical motor:

Question 1

What is the motor effect?

Answer 1

= when a conductor is carrying a wire it experiences a force in a magnetic field.

Question 2

How does a split ring commutator work?

Answer 2

= connected to conducting brushes- allows current to pass onto the ring
= force makes the motor rotate in a clockwise direction
= current is broken from a fraction of a second, wire keeps turning due to momentum
= current switches direction

Question 3

Without the split ring commutator what happens?

Answer 3

= rotate clockwise BUT
= once at 90 degrees it will stop rotating
= if it is further than 90 degrees:
= force on left: acts downwards
= force on right: Act upwards
= pushes loop back to 90 degrees

Question 4

How would be solve this problem?

Answer 4

= switch direction of current when loop passes 90 degrees

Question 5

What does a split ring commutator allow ?

Answer 5

= Motor to rotate in the same direction