However, the same combination that makes outdoor activities pleasant can wreak havoc in industrial facilities. Temperature and humidity swings create condensation on concrete slab floors common in many industrial settings. Known as âsweating slab,â this sheen of water can cause big issues with employee safety and product integrity. Following are a few of the common questions about sweating slab, and an example of a company that successfully solved its perspiration problem. What is sweating slab? Condensation occurs when warm, moist air contacts a cold surface.
Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied. In quantitative terms, it is the complex ratio of the voltage to the current in an alternating current (AC) circuit. Impedance extends the concept of resistance to AC circuits, and possesses both magnitude and phase, unlike resistance, which has only magnitude.
Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially in toward a negative point charge.