Asymmetrical grid with sidebar: Our final example is a very popular asymmetrical layout which makes use of a narrow side column, or âsidebarâ. This sidebar is not used for main body copy, but instead holds related text (headings, pull quotes, notes, and so on), graphics, or simply white space.
From Wikiversity. RL Circuit refers to a circuit having combination of resistance(s) and inductor(s). They are commonly used in chokes of luminescent tubes. In an A.C. circuit, inductors helps in reducing voltage, without the loss of energy. Due to the inductive reactance, the higher the AC frequency, the greater the impeadence of the inductor. Under DC conditions, an inductor acts as a static resistance.
The R/L term in the above equation is known commonly as the Time Constant, ( Ï ) of the LR series circuit and V/R also represents the final steady state current value in the circuit. Once the current reaches this maximum steady state value at 5Ï, the inductance of the coil has reduced to zero acting more like a short circuit and effectively removing it from the circuit.