In Chaucer's The Canterbury Tales , a line referencing the feudal social structure is "Full worthy was he in his liege-lord's war." This highlights the duty of knights to serve their lords, which was central to the feudal system. The knight's loyalty and military service illustrate the social hierarchy of medieval England. ;
A current of 15.0 A flowing for 30 seconds results in a total charge of 450 C. This charge corresponds to approximately 2.81 x 10^21 electrons flowing through the device. Thus, nearly 2.81 x 10^21 electrons pass through the device in the given time period.
;