2:27 aug E PORELISSADY A student constructed the simple DC motor using insulated wire, a battery and a small strong disc magnet. Safety pins were used to contact the coil to the battery which was held by plasticene. One end of the wire had all the insulation removed where it rested on the safety pin and the other end had the insulation removed on half the circumference of the wire where it rested on the safety pin. Identify the vital component missing in this motor that is contained in all manufactured DC motors, describe its function and explain why this student motor works without this component.

2:27 aug E PORELISSADY A student constructed the simple DC motor using insulated wire, a battery and a small strong disc magnet. Safety pins were used to contact the coil to the battery which was held by plasticene. One end of the wire had all the insulation removed where it rested on the safety pin and the other end had the insulation removed on half the circumference of the wire where it rested on the safety pin. Identify the vital component missing in this motor that is contained in all manufactured DC motors, describe its function and explain why this student motor works without this component.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 18SQ

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