Electrical Machines
For a given torque, reducing diverter resistance of a DC series motor causes

 decrease in speed demanding less armature current.
 increase in speed but armature currnet remains the same.
 increase in speed demanding more armature current.
 decrease in speed but armature current remains the same.

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

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

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