A load of 1000 kg is to be lifted at a rate of m/minute with the help of motor operating at 240 V and requiring a current of 10 A. The overall efficiency of the system is (Take g = 10 ms-²) (a) 48.6% (b) 69.4%

A load of 1000 kg is to be lifted at a rate of m/minute with the help of motor operating at 240 V and requiring a current of 10 A. The overall efficiency of the system is (Take g = 10 ms-²) (a) 48.6% (b) 69.4%

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A load of 1000 kg is to be lifted at a rate of 10
m/minute with the help of motor operating at
240 V and requiring a current of 10 A.
The overall efficiency of the system is
(Take g = 10 ms-²)
(a) 48.6%
(c) 74.8%)
(b) 69.4%
(d) 92.6%

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