4.2. The illumination levels in two different points, 0.75m away from each other, are 450 and 275 luxes. Calculate the coefficient of illumination evenness (the ratio between the minimum and the maximum) and assess the results hygienically.

4.2. The illumination levels in two different points, 0.75m away from each other, are 450 and 275 luxes. Calculate the coefficient of illumination evenness (the ratio between the minimum and the maximum) and assess the results hygienically.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter2: Basic Electricity

Section: Chapter Questions

Problem 30RQ: True or False: Ohms law applies to all types of electrical circuits.

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Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

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4.2. The illumination levels in two different points, 0.75m away from each
other, are 450 and 275 luxes. Calculate the coefficient of illumination evenness (the
ratio between the minimum and the maximum) and assess the results hygienically.

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