Question

define mean value and root mean square value of alternating current

Answer 1

root mean square value of alternating current is that steady current(dc current) which when passed through a given resistance at a given time produced the same amount of heat as produced by ac current when passed through the same resistance at the same time.

Answer 2

Answer:

Mean value of alternating current—It is that value of steady current which sends the same amount of charge through a circuit in a certain time interval as is sent by an a.c. through the same circuit in half cycle.