A DC motor connected to a 230 V supplyhas an armature resistance of 0.15 2. The value of armaturecurrent when the back emf E, = 200 V is ______A.(A) 50(B) 100(C) 400(D) 200

It is given that:supply Voltage= 230 Volts,armature resistance is back emf is

Answered: A DC motor connected to a 230 V supply…

A DC motor connected to a 230 V supply has an armature resistance of 0.15 Q2. The value of armature current when the back emf E, = 200 V is ____A. b (B) 100 (D) 200 (A) 50 (C) 400

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

A DC motor connected to a 230 V supply
has an armature resistance of 0.15 2. The value of armature
current when the back emf E, = 200 V is ______A.
(A) 50
(B) 100
(C) 400
(D) 200

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