1
GATE EE 1993
MCQ (Single Correct Answer)
+1
-0.3
A cumulative compounded long shunt motor is driving a load at rated torque and rated speed. If the series field is shunted by a resistance equal to the resistance of the series field, keeping the torque constant. GATE EE 1993 Electrical Machines - D.C Machines Question 6 English
A
the armature current increases
B
the motor speed increases
C
the armature current decreases
D
the motor speed decreases
2
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
Neglecting all losses, the developed torque $$(T)$$ of $$d.c.$$ separately excited motor, operating under constant terminal voltage, is related to its output power $$(P)$$ as under
A
$$T\,\, \propto \,\,\sqrt P $$
B
$$T\,\, \propto \,\,P$$
C
$${T^2}\,\, \propto \,\,{P^3}$$
D
$$T$$ independent of $$P$$
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