0 CHARGE YOUR BRAIN

06-03-11
QUES:why the insulated wires used in homes or elsewhere are twisted with each other and are not parallel without joined?
ANS: Twisted Pair cancel out the EMI(Electro Magnetic Interference) effect and the twisted wire adds more strength.

QUES:We came across only 1phase and 3phase currents why no 2phase current?
ANS: 2phase currents also present in 2 phase current the deviation between the two phase is 90degree while in 3phase its 120 degree its efficiency is poor have losses.Its also known as POLYPHASE ALTERNATING CURRENT.