Electrical Machines
A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would

 remain unchanged
 be more than 10%
 be 12.5%
 be less than 10%

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Electrical Machines
In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed?

 The speed will increase in proportion to reduction in load.
 The speed will remains almost constant.
 The speed will increase gradually.
 The speed will increase abruptly.

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