4.2 The voltage generated in phase a of an unloaded three-phase synchronous generator is of the form va (t) = /2 Va cos (ot). (i) Write expressions for the voltage in the remaining two phases a and b....

Extracted text: 4.2 The voltage generated in phase a of an unloaded three-phase synchronous generator is of the form va (t) = /2 Va cos (ot). (i) Write expressions for the voltage in the remaining two phases a and b. (ii) Write an expression for the line-line voltage Vab(t).