Technician A says that a 12-volt light bulb that draws 12 amps has a power output of 1 watt. Technician B says that a motor that has 1 ohm of resistance has a power rating of 144 watts if it is connected to a 12-volt battery. Who is correct?

Technician A says that a 12-volt light bulb that draws 12 amps has a power output of 1 watt. Technician B says that a motor that has 1 ohm of resistance has a power rating of 144 watts if it is connected to a 12-volt battery. Who is correct?

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter22: Basics Of Electronics And Computer Systems

Section: Chapter Questions

Problem 6ASRQ

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Concept explainers

Control transformer

A Control Power Transformers refers to a two-winding transformer that converts an electrical voltage from one value to another using the concept of mutual inductance. The Control Power Transformers help to control/switch the main circuit components. Therefore, the transformer that provides a lower or higher voltage supply to the industrial controls for control circuits like motor starters, controllers, etc., refers to as Control Power Transformers.

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