The “kinetic” form of this quantity names a type of detector that can count photons and derives from the motion of Cooper pairs in superconductors. This quantity times angular frequency equals a form of reactance. Voltage equals this quantity times the time derivative of current in an alternate form of Faraday’s law, (10[1])since this quantity is defined as the derivative of magnetic flux with respect to current. (10[2])Since this quantity is linearly proportional to permeability, it can be increased by a conducting core. (10[1]-5[1])One over the square root of this quantity times capacitance equals the resonant (10[1])frequency of an oscillating circuit. This quantity measures the strength of coiled circuit components that store energy in magnetic fields. For 10 points, name this quantity symbolized L and measured in henries. ■END■ (10[1])