A quantum mechanical effect decreases the strength of these devices when their constituent materials have a low density of states. AC coupling uses these devices as high-pass filters, blocking direct current. In [emphasize] series, the strength of these devices equals the reciprocal of a (10[1])sum of (10[1]-5[2])reciprocals. (-5[1])Resistance times a characteristic quantity of these devices equals the time constant. An inductor and one of these (10[1])devices make (10[1])an oscillating (10[1])circuit. A quantity named for these devices, which equals charge over voltage, can be increased by inserting a dielectric between two parallel plates. For 10 (10[1])points, what circuit elements that store energy in electric fields name a quantity measured in farads? (10[3]0[1])■END■