Solids analyses were conducted on a soybean processing wastewater. 50 mL of wastewater is used for total solids analysis and 100 mL of wastewater is used for suspended solids analysis. The laboratory results are: Weight of empty dish Weight of dish + residue after evaporation at 105°C Weight of dish + residue after ignition at 550°C Weight of filter Weight of filter + residue after drying at 105°C Weight of filter + residue after ignition at 550°C 54.222 g 54.475 g 54.455 g 0.2160 g 0.2215 g 0.2180 g Based on the test data above, determine the concentration of total solids, total volatile solids, total fixed solids, suspended solids, volatile suspended solids and fixed suspended solids in mg/L.

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Electric Current, Voltage and Electric Power

The term electric current is the flow of electrons or electric charges. The drift of electrons is proportional to the amount of voltage or potential difference applied. The more is the voltage, the more will be the electron drift. The amount of electric current a circuit possesses is proportional to the density of electrons or electric charge.