On Thursday, October 18, 2012, we were given a simple electrical generator that converts motion into electricity, a voltmeter, and a device that connects the voltmeter to the computer. The electrical generator is consisted of a non-movable ring of coil and a movable magnet that passes through the coil. Both of these components are contained in a cylindrical shaped plastic container. When shaking the plastic container, the magnet passes through the coil generating electrical voltage. Both ends of the coil are connected to the voltmeter and the voltmeter is connected to the computer through a device.
The purpose of the experiment was to see the relation between the number of shakes and the voltage generated. So, we had to shake the generator for 30 seconds and counted the number of shakes. In the mean while, the computer took a reading from the voltmeter every second, then output the results to an Excel file.
We shaked the generator three times at different number of shakes. The following table shows the relation between the number of shakes and the total voltage generated.
0 shakes …….. 0.180625861 V
29 shakes ……….. 0.37242538 V
68 shakes …………. 75.32163037 V
As you can see from the table, the number of shakes is directly proportional to the voltage generated. That means, increasing the number of shakes increases the voltage.
Energy cannot be created or destroyed, only converted from one form to another. We needed energy to shake the generator, that energy got converted to electrical energy. That is the dilemma the world is facing. We need renewable energy sources so we can convert it to electrical energy.
Does energy have any effect on the magnetic flux ?