ield circuit resistance in DC shunt generator should be ………… critical field resistance.*equalhigher thanequal or higher thanless than

In a DC shunt generator, the critical field resistance is a crucial parameter that determines the operation of the generator. The field resistance must be set correctly to ensure the generator can build up its voltage.

1. Critical Field Resistance: This is the maximum resistance that the field winding can have while still allowing the generator to generate output voltage. If the field resistance exceeds this critical value, the generator will not be able to maintain excitation.

2. Correct Value: The field circuit resistance in a DC shunt generator should be less than the critical field resistance. If the resistance is higher, the generator may fail to build up voltage instead of achieving stable operation.

Final Answer

The field circuit resistance in a DC shunt generator should be less than the critical field resistance.