GETCO Exam Paper (22-07-2015)
In case of a balanced three phase sinusoidal AC supply, because of the phase difference

neutral wire is not required, if load is balanced
neutral current is high if load is not balanced
rotating magnetic field is produced
all are correct

ANSWER DOWNLOAD EXAMIANS APP

GETCO Exam Paper (22-07-2015)
Laplace transforms is used for

converting non linear equation to linear equation
finding transfer function of any systems
for finding initial condition in a system
converting diffential equation to algebraic equation

ANSWER DOWNLOAD EXAMIANS APP