At present, the problem of energy, and energy is not enough, or the power is increased. The energy in the form of light to illuminate the electricity reached in many areas.By the project, this research aims to study the working principle for galvanic cell. The objective is to design and invention portable lamp with energy from the great Khali? The experiment was done by finding suitable electrodes and variables that affect the occurrence of electrical energy.The hypothesis of the experiments. The texture of metal electrode with working fluid affects the electrical energy occurs or not, and the electric cells affect electricity or not. By the experiment of the electrodes, the suitable test compare the calculation results from the theory and experimental results. Using metal type, copper, zinc. Magnesium, lead, and tin, this experiment conducted by using full cell cell cell 1 300 ml water and salt 15 g and measure the electric current and the electric potential. Experiments and texture affect electricity that was using the electrode copper. Polarity and magnesium, which results that copper and magnesium is a metal electrode that produces electricity and the electric potential most. The texture of copper more cause more electricity and electricity peak 49.3 MAH spares. When using the touch surface 1080 cm2. But do not affect the electric potential is not elevated or reduced. Adding texture magnesium not caused the current increase. But the resulting in electricity declined slightly. The electric potential is not increased. And when the electric cells. Electricity did not change. The electric potential is increased. Enough for the use of the bulb size 3 V. And found from experiments, the experimental design and artificial target.
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