Electromagnetic Induction

                 It’s the 6^th experiment for our 102.1 lab already, it’s called Electromagnetic Induction.  For this day, we were able to meet the objectives of our experiment. We demonstrated Faraday’s and Lenz’ Law and the right-hand rule using an electromagnetic induction set-up.  We were able to determine the relative strength and direction of the induced current and EMF using a galvanometer. We also determined the effects of different factors such as varying magnetic field strength and current on the induced current and EMF. Lastly, we related Faraday’s law to practical applications and this would be seen on our technical paper.

                

               The problem with this session is that the materials are not sufficient for every group, so what we did was to share materials with the other groups. Thus, we have the same experimental results but of course, we would have different approach to our analysis.

              

              We have 1 more experiment to go and we would have our creative work already! Looking forward to more physics FUN ^_^

Sources of Magnetic Field

                Today we had our 7^th lab session and we’ve done experiment 5. Experiment 5 mainly tackled about magnetic field. Due to the topic, we were able to understand more concepts about magnets and the field that it creates and the sources of it. The session is interesting and fun due to our group’s curiosity on magnets. It was really fun playing with iron dust. It looks cool when we place a magnet beneath the paper with iron dust and pull the iron dust around the spaces in the paper.

                We were able to complete our objectives for today. We were able to measure the magnetic fields of materials and we understood how magnetic field affects certain materials. Now the only thing left to do is to create our technical paper. I’m hoping for more physics fun!

Capacitors and RC Circuits Part 2

                So we continued our experiment from our last lab session. Last time we just computed for the actual values using theoretical values and reformulating some concepts that we know. This time we were able to acquire real experimental data through the use of Lab Quest. We performed series and parallel set-ups to measure the effective capacitance of capacitors being used. We used our lab quest to record and save the graph of charging and discharging of the capacitors.

                It was really enjoying to see the graph of charging and discharging. We were able to do many trials to make sure that the graph is consistent. Good thing I always have my usb in my bag. Now we’ll do our technical paper for Capcitors and RC circuits.

                Looking forward for more Physics Fun! ^_^ 

Capacitors and RC Circuits

            It’s our 5^th lab session and we had our 4^th experiment. The lab session was really awesome due to the dissecting of a cylindrical plate capacitor. We really had a hard time dissecting it. It was really hard and we really don’t know how to open it but in the end, we were able to dissect it and see its parts. Another time-consuming part of the session was the designing of our own experiment to meet the objectives of the capacitors and RC circuit experiment.  It was really difficult to experimentally acquire data for establishing relationships of voltage, charge, and capacitance.  In the end, we resort to our theoretical calculations and used our own method to calculate what experimental values we should expect.

             This session was somewhat different from the previous sessions. We really did some critical thinking this time and used all our knowledge to complete our objectives.  The experiment is not done yet. We would continue the unfinished part this coming Monday.

              

              I’m hoping for more Physics Fun! ^_^

DC Circuit Analysis: Kirchoff’s Rules

          Another lab session has ended and again it was a new experience.  For our lab session, we were able to analyze the connection system of a breadboard and how to solve for current, potential difference, and resistance when a series or parallel connection is on a breadboard.  After the “exercises” given by Mr. Pacho, we continued with our experiment.  We were able to construct a 2-loop circuit in a breadboard.  It was really fascinating. I was the only one new to this breadboard in our group so I really had an amazing time learning about how series or parallel circuits should be constructed.  In the end, we were able to measure and record all the data needed and we also completed the objectives of our experiment.

               

           During the experiment, we really had a tough time with our resistors.  We replaced our resistors many times due to the defects it had after several minutes exposed to a current. Maybe some of it was not really of good quality so it burns easily or sometimes the metal rods break.  We also had a problem with our DC voltmeter, so we changed it after an hour of experimenting with it. 

                

          I’m sure that the next session would be dealing with hard concepts, but nevertheless we will enjoy it.  I’m hoping for more amazing and fascinating lab sessions! GO FOR PHYSICS! ^_^

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!

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! ^_^