Electrical Machines
The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor?

  16.67%.
 14.28%.
 15.30%.
 18.25%.

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Electrical Machines
Which is the arrangement of windings in a core type single phase transformer?

 Half lv inside and half hv outside on each core limb
 Lv on one core limb and hv on the other
 Half hv inside and half lv outside on each core limb
 Sandwiched lv and hv discs on each core limb

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