Which of the points indicated on the no-load characteristic of the DC generator corresponds to the nominal value of the armature emf? A.

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Which of the points indicated on the
no-load characteristic of the DC
generator corresponds to the nominal
value of the armature emf?
E,
A.
Выберите один ответ:
а. Точка А
b. Точка D
с. Точка С
d. Tочка В
Transcribed Image Text:Which of the points indicated on the no-load characteristic of the DC generator corresponds to the nominal value of the armature emf? E, A. Выберите один ответ: а. Точка А b. Точка D с. Точка С d. Tочка В
By what rule is the direction of the
force acting on the conductor with
current in the armature winding of a DC
machine determined?
Выберите один ответ:
With a constant excitation flux and with
a. Left hand rule
a change in the supply voltage, the
b. By the gimlet's rule
mechanical characteristics of the
independent excitation motor will be:
c. Right hand rule
d. The direction of the force
a. Parallel to each other
coincides with the direction of the
b. Cross at one point
current in the armature winding
c. Cross at different points
Transcribed Image Text:By what rule is the direction of the force acting on the conductor with current in the armature winding of a DC machine determined? Выберите один ответ: With a constant excitation flux and with a. Left hand rule a change in the supply voltage, the b. By the gimlet's rule mechanical characteristics of the independent excitation motor will be: c. Right hand rule d. The direction of the force a. Parallel to each other coincides with the direction of the b. Cross at one point current in the armature winding c. Cross at different points
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