- #1
darwinharianto
- 42
- 0
Homework Statement
why are there only 3 phase systems and 1 phase system, not other systems like 4 phase or more?
why do electricity only use 50/60 Hz?
Homework Equations
The Attempt at a Solution
for number 1 i assume if there are more phase, the price will be higher so it won't be used. But i need other reasons beside that.
for number 2 i thought because at 50/60 Hz people can no longer differentiate if it is continuous or just blinking.
is this right? or are there more reasons?
thank you for answering