. D.C. series generator is used

to supply traction load

to supply industrial load at constant voltage

voltage at the toad end of the feeder

for none of the above purpose

IIT-JEESciences

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In an electro-mechanical energy conversion device, the coupling field on the(i) electrical side is associated with emf and current
(ii) electrical side is associated with torque and speed
(iii) mechanical side is associated with emf and current
(iv) mechanical side is associated with torque and speed
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