Electrical Engineers have developed an energy-efficient

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Electrical Engineers have developed an energy-efficient type of light bulbs that can replace the traditional incandescent bulb. The new bulb, known as the electronic lamp, operates by using a a high-frequency radio signal rather than d filament featured in incandescent bulbs. Although the electronic lamp currently costs 20 times as much as its tradional counterpart, its use will prove more cost effective in the long run. While a 100-watt incandescent bulb lasts 6 months if burned for 4 hours daily, a 25-watt electronic lamp used for the same amount of time each day lasts up to 14 years.

Argument above assumes that

A) the typical household use of light bulb is approx 4 hours a day
B) aside from its greater efficiency, the electronics lamp resembles the incandescent light bulb in most aspects
C) the type of light cast by the electronic lamp is different from that cast by an incandescent bulb.
D) the price of electronics lamps will decrease as they are produced in increasingly greater quantities.
E) a 100-watt incandescent light bulb does not provide significantly more light than a 25-watt electronic lamp.

OA E

Why Not B

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by essaysnark » Tue Nov 15, 2011 3:23 pm
Hi parisi04 --

In our opinion, E is better because it's more precise. Without E as an option, then sure, B would qualify - but "resemble" seems to be superficial, dealing with appearance, rather than performance (amount of light produced).

That's our take on it!
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by tuanquang269 » Wed Nov 16, 2011 1:46 am
Hi, you can compare between choice B and choice E. B is really necessary? If you feel it, just compare with the importance of each choice? Which is more important.

This case for me, E is more important.

If new lights is dimmer than the old. The longevity of the new is not prove anything because, the old lights also can live longer if they are configured with the similar bright degree.

Hope that help.

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by parisi04 » Wed Nov 16, 2011 1:06 pm
What I don't like about the E is the use of the word "significantly".
With this word, answer E can elude to the fact that Incandescent light bulb does provide more light than the electronic lamp, but that light difference is not significant.

If this is true, we can't argument that both lamps provide the same results, therefore the electronic lamp can't replace the incandescent one.

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by tuanquang269 » Wed Nov 16, 2011 5:39 pm
parisi04 wrote:What I don't like about the E is the use of the word "significantly".
With this word, answer E can elude to the fact that Incandescent light bulb does provide more light than the electronic lamp, but that light difference is not significant.

If this is true, we can't argument that both lamps provide the same results, therefore the electronic lamp can't replace the incandescent one.
You say 'light difference is not significant' that is you error in assumption. The argument did not say about the light difference. If the Incandescent light bulb can provide light normally (the kind of light we use everyday), and the light from electronic lamp is significant darker than incandescent bulb.

And in choice B, can you provide any clue to prove this is your choice? If you assume through many bridge, that choice will not the correct one.

Did I answer your question?

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by parisi04 » Thu Nov 17, 2011 1:03 am
yes thanks for your time