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2016 engineering hsc help (1 Viewer)

cloud edwards

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Jan 22, 2016
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84
Location
rural place
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HSC
2017
How does one do this?
13) A 240 V, 75 W light globe is replaced with a 240 V, 12 W LED globe of equivalent
brightness.
What is the theoretical power saving?
(A) 12 W
(B) 63 W
(C) 87 W
(D) 240 W

ANSWER: B
 

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