Explain counter or back e.m.f. in d.c. motor and state its importance.

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Manojponduru answered 1 year ago

a) With the aid of diagrams, describe the three characteristics of d.c. series motor. (b) Briefly...

a) With the aid of diagrams, describe the three characteristics of d.c. series motor. (b) Briefly explain the difference between squirrel cage induction motor and wound rotor induction motor in terms of construction.

Question :01 Part A The initial conditions of a d.c. motor are: K’ = 3:0Vs V1...

Question :01 Part A The initial conditions of a d.c. motor are: K’ = 3:0Vs V1 = 24:0V Td = 18Nm Ra = 2 ohm For a 50 percent increase in the armature voltage, calculate the percentage Change in the no-load speed. Assume that the load torque is unchanged. Is the increase in speed proportional to increase in armature voltage give reson for your answer. speed. Part B: A 50 V, d.c. shunt motor drives a constant-torque load at a...

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Explain counter or back e.m.f. in d.c. motor and state its importance.

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