Question

347. he armature of a d.c. motor has a resistance of 20 12. It draws a current of 1.5A when run by 220 V d.c. The value of peak e.m.f. induced in it will be (a) 150 V (b) 170 V (c) 190. V (d) 180 V

E- e = IR​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Motor Principle

➣ Comparison of Generator

and Motor Action

➣ Significance of the Back

e.m.f.—Voltage Equation of

a Motor

➣ Conditions for Maximum

Power

➣ Torque

➣ Armature Torque of a Motor

➣ Shaft Torque

➣ Speed of a D.C. Motor

➣ Speed RegulationTorque

and Speed of a D.C. Motor

➣ Motor Characteristics

➣ Characteristics of Series

Motors

➣ Characteristics of Shunt Mo-

tors

➣ Compound Motors

➣ Performance Curves

➣ Comparison of Shunt and

Series Motors

➣ Losses and Efficiency

➣ Power Stages

Explanation:

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