If the rotor of an AC generator is driven so that its angular speed becomes twice its…
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
If the rotor of an AC generator is driven so that its angular speed becomes twice its original value, how does the frequency of the output emf change?
(a) It becomes half of the original value
(b) It remains unchanged
(c) It becomes twice the original value
(d) It becomes four times the original value