conservation of charge vs conservation of electricity

conservation of charge and conservation of electricity both are nouns.

Word	Noun	Adjective	Verb	Adverb
conservation of charge	Yes	No	No	No
conservation of electricity	Yes	No	No	No

As nouns, conservation of charge and conservation of electricity are synonyms defined as:

conservation of charge and conservation of electricity: the principle that the total electric charge of a system remains constant despite changes inside the system

conservation of charge (noun)	conservation of electricity (noun)
the principle that the total electric charge of a system remains constant despite changes inside the system	the principle that the total electric charge of a system remains constant despite changes inside the system