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Why might an LED torch have a longer life on one set of cells than a filament bulb?
Hey PLEASE answer the right question, this is my Physics homework, our teacher didn't give us any notes or explain anything.
Why might an LED torch have a longer life on one set of cells than a filament bulb?
And also:
The bulb should have an operating voltage of ___ v.
What is the voltage?
My teacher, is actually a doctor. And he loves Biology, and doesn't know it as well as Physics. So I guess thats why.
He didn't write the question, it was on a worksheet he gave us.
With a diagram of a torch and we had to label it and those 2 questions.
The diagram also include 3 cells. If that helps... (:
There is no "MIGHT" about it. It's not a guessing game, nor a matter of opinion. The LED consumes less power. That's the only possible answer. If your teacher actually worded the question that way, your teacher is not qualified to teach physics.
As to the second question, no answer is possible, because there are an infinite number of possible answers. You have provided insufficient data for a meaningful answer.
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