Simple equation of DC machine operating in motoring mode, with non-zer

1.	Simple equation of DC machine operating in motoring mode, with non-zero Ra value is________
A.	Vt = Ea ‚Äö√Ñ√∂‚àö√ë‚àö¬® Ia/Ra
B.	Vt = Ea + Ia*Ra
C.	Vt = ‚Äö√Ñ√∂‚àö√ë‚àö¬® Ea + Ia*Ra
D.	Vt = Ea ‚Äö√Ñ√∂‚àö√ë‚àö¬® Ia*Ra
Answer» C. Vt = ‚Äö√Ñ√∂‚àö√ë‚àö¬® Ea + Ia*Ra

Discussion

No Comment Found

Related MCQs

For a DC motor taking 10kW power from 230V mains, having armature resistance and field resistance equal to 0.08Ω and 115Ω resp. The value of armature current is_____
What is the armature current for a DC generator if terminal voltage is observed to be 245V and open circuit voltage is equal to 250V, where armature resistance is 0.05Ω?
For a DC generator feeding 100kW power into 230V mains, having armature resistance and field resistance equal to 0.08Ω and 115Ω resp. The value of armature current is_____
What is the armature current for a DC motor if terminal voltage is 255V and open circuit voltage is equal to 250V, where armature resistance is 0.05Ω?
When torque of the electromagnetic origin is in the direction of rotation of armature, machine is said to be operating in which of the following mode?
When Ea
A 4-pole Dc wound machine is lap wound with 400 conductors. The pole shore is 20 cm long and average flux density over one-pole pitch is 0.4 T, the armature diameter being 30 cm. Here, motor is drawing 25 A current at 1500 rpm.What is the available torque (N-m) at shaft?a) 29.9b) 59.8c) 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?
Product of torque and mechanical angular velocity ω is_____
WHAT_IS_THE_ARMATURE_CURRENT_FOR_A_DC_MOTOR_IF_TERMINAL_VOLTAGE_IS_255V_AND_OPEN_CIRCUIT_VOLTAGE_IS_EQUAL_TO_250V,_WHERE_ARMATURE_RESISTANCE_IS_0.05‚ÄÖ√Ñ√∂‚ÀÖ√´¬¨‚ÀÇ??$#
What is the armature current for a DC generator if terminal voltage is observed to be 245V and open circuit voltage is equal to 250V, where armature resistance is 0.05‚Äö√Ñ√∂‚àö√´¬¨‚àÇ?$#

Simple equation of DC machine operating in motoring mode, with non-zero Ra value is________

Discussion

No Comment Found

Related MCQs

Reply to Comment