|
| |
 Change
the charging voltage using the slider and see how it affects the motor's operation as the
capacitor discharges.Record your results on the results
data sheet.
Look at the results you have recorded. Can you spot a pattern or relationship? |
|
 The work done by the motor =
the gain in potential energy of the mass as it is raised: |
| \W |
= mgh |
| Since mass and
gravity are constant: |
| W |
µ h |
| so the work done
can be represented by h. From the results
you should see that: |
| h |
µ V2 |
| W |
µ V2 |
But,
the work done by motor = energy transferred by capacitor, so the energy stored in the
capacitor, E, is such that: |
| E |
µ V2 |
| E |
= constant
× V2 |
So what is this constant?
|
