Electric Circuits
Three identical resistor are connected in star across a 3 phase 550 V supply dissipating a total power of 300 W the line current is ____________ A.

 0.5
 2.56
 3.149
 1

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Electric Circuits
Atoms have no electric charge because they

 have neutrons in their nuclei.
 have an equal number of electrons and protons.
 have an equal number of charged and non charged particles.
 have an equal number of neutrons and protons.

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