US has Electricity at 110V/60Hz, India has it at 230V/50Hz. Why?

Subject: US has Electricity at 110V/60Hz, India has it at 230V/50Hz. Why?

Date: Sun Feb 11 13:47:43 2001
Posted by Hitesh
Grade level: undergrad School: C R State College of Science History, Murthal
City: Murthal State/Province: Haryana Country: India
Area of science: Science History
ID: 981917263.Sh

Message:


Why did various contries start out with different V/Hz systems? Which was 
decided first, frequency or voltage, and based on what criteria? Why does 
the US have appliance with plugs having rectangular pins while some 
countries have cylindrical ones (isn't lack of edges a positive attribute 
of a conductor?).

Re: US has Electricity at 110V/60Hz, India has it at 230V/50Hz. Why?

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