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Problem No.2 A 100v motor is taking a current of 220A ,armature resistance is 0.015 ohm. Shunt field resistance is 20 ohms. Calculate a. Back emf of the motor b. Power spend in turning the armature Problem No.3 The following are the ratings of the given motor : Vt = 440 V Po =7.46 KW Ra = 0.8 ohms N= 85 % Rf - 200 ohms Calculate the back emf of the motor.

Problem No.2 A 100v motor is taking a current of 220A ,armature resistance is 0.015 ohm. Shunt field resistance is 20 ohms. Calculate a. Back emf of the motor b. Power spend in turning the armature Problem No.3 The following are the ratings of the given motor : Vt = 440 V Po =7.46 KW Ra = 0.8 ohms N= 85 % Rf - 200 ohms Calculate the back emf of the motor.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Problem No.2 A 100v motor is taking a current of 220A ,armature resistance is 0.015 ohm. Shunt field resistance is 20 ohms. Calculate a. Back emf of the motor b. Power spend in turning the armature Problem No.3 The following are the ratings of the given motor : Vt = 440 V Po =7.46 KW Ra = 0.8 ohms N= 85 % Rf = 200 ohms Calculate the back emf of the motor.
Transcribed Image Text:Problem No.2 A 100v motor is taking a current of 220A ,armature resistance is 0.015 ohm. Shunt field resistance is 20 ohms. Calculate a. Back emf of the motor b. Power spend in turning the armature Problem No.3 The following are the ratings of the given motor : Vt = 440 V Po =7.46 KW Ra = 0.8 ohms N= 85 % Rf = 200 ohms Calculate the back emf of the motor.
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