June 26, 2012

Resistors and Ohm's Law


                For our second lab session, we experimented on resistors.  This session was fun because we were able to use new instruments again! I was amazed with how the resistance box works as well as the rheostat.  Our group proceeded with the objectives in hand for the whole three hours of our lab.
          
          Our group was able to finish the objectives in time. We learned about the different types and structures of resistors.  We were able to measure resistances of resistors, resistance box, rheostat, variable resistor. Lastly, we were able to understand and determine the relationships between voltage, current and resistance in ohmic and non-ohmic conductors.
                
                I had a great time and it was really fun doing the experiments. Now we have to finish our technical paper and submit it on time. I’m hoping for more fun experiments!

June 24, 2012

Electric Potential and Electric Field


           This is my first lab session as a second year student.  For our lab session, we briefly tackled about electric potential and electric fields.  Then we had an experiment concerning the two topics.  The experiment was actually exciting due to the fact that we are using new instruments or devices, and they are cooler than instruments used during our 101.1 last semester.

          Our group (2) was able to finish the objectives of the experiment.  We were able to track equipotential points and at the end, we were able to sketch the equipotential lines.  We did not have any trouble during the experiment but it was really time consuming.  It takes patience to look for points with equal potential especially when you have to have at least 7 equipotential lines. Those are consist of so many points!
          
           Nevertheless, we were able to finish everything.  Now the only thing left to do is to submit our technical report about it.  I'm hoping for more fun physics experiments! ^_^