Resistivity, electrical elements

RECEIVER HEATING ELEMENT - Electrical resistance mounted in or around liquid receiver. It is used to maintain head pressures when ambient temperature is low. 

Distillation, azeotropes, 6-177 to 195 Divergence, definition, A-68 to 74 DSC, definition, 12-1 to 4 DTA, definition, 12-1 to 4 Dubnium (element 105), 4-1 to 42,11-56 to 253 Dysprosium see also Elements electrical resistivity, 12-39 to 40 electron configuration, 1-18 to 19 heat capacity, 4-135 history, occurrence, uses, 4-1 to 42 ionization energy, 10-203 to 205 isotopes and their properties, 11-56 to 253 magnetic susceptibility, 4-142 to 147 molten, density, 4-139 to 141... 

Wire loop or tubular element electrical resistance probes, fitted with velocity shields that extend the full length of the probe body, should not be used in conjunction with low-pressure access fittings on hydrocarbon or other hazardous duty. There is a risk that an uncontrolled fluid release could occur on retracting the probe, should the velocity shield fail by a corrosion-related or other mechanism. 

As the electrical current can be carried by conduction or displacement ciurrent, the circuit elements, electrical resistance and capacitance are coimected in parallel in the equivalent circuit. Since now the voltages across the resistance (U = IrR) and capacitance (integral of Uc = Ic/C) are equal, and the contributing currents add to give a constant total current (I = (Ir +.Ic))) this yields the differential equation... 

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