Student learning by experiment method for analyzing the dynamic electrical circuit and its application in daily life

Abstract

Resistor is an important component in electronics which function as the electrical resistance or resistor of electric current. In this experiment used 3 identical resistors, that means is having an equal resistance value which is 1000 Ω. From 3 resistors be made into 2 circuits. They are 3 resistors on the series and parallel circuit. The dynamic electrical experiment in an electric circuit used 3 resistors and voltage 3 V. The characteristics of resistance and electric current on the series circuit of 3 resistor is (3000 ± 250) Ω and (100 ± 2.5) 10−5 A and on the parallel circuit is (350 ± 25) Ω and (850 ± 25) 10−5 A. The application of learning is in daily life is a lamp for lighting a room. Has been characterized and analyzed the value of voltage and current for the circuit of 3 identical lamps series and parallel with Ohm's law. By using voltage 1.5 V, the electrical current in the circuit of series and parallel is (3 ± 2.5) 10−1 A and (9 ± 2.5) 10−1 A. The intensity of the light on the series of lights is dimmer than the parallel. This experimental testing is done directly by students on the learning process, so that learning can be effective especially on scientific attitude and knowledge transfer. Average Scores of pre-test is 4.5 and post-test is 10.1. Value of N-gain is 0.4, gives information that student learning by experiment method can improve cognitive learning outcomes is in medium criteria on the topics "dynamic electrical and Ohm's law".