Most common form of A.C. meters met with in every day domestic and industrial installations are
A. mercury motor meters
B. commutator motor meters
C. induction type single phase energy meters
D. all of the above
Answer:C
Most common form of A.C. meters met with in every day domestic and industrial installations are
A. mercury motor meters B. commutator motor meters C. induction type single phase energy meters D. all of the above