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HEATING FILAMENT WILL RATE LIFESAVER!!!

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Pupil
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Date Posted: 5/14/2008 3:04:43 AM  Status: Closed
HEATING FILAMENT WILL RATE LIFESAVER!!!
Course Textbook Chapter Problem
N/A HOW THINGS WORK 10.3 32
Question Details:

If a 3000-Ω heating filament is carrying a current of 0.04 A, what voltage drop is that current experiencing? Round the answer to 3 significant digits.


V
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Answers:

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Sage
Karma Points: 6,136
Date Posted: 5/14/2008 3:13:03 AM  Status: Live
Asker's Rating: Lifesaver   
Response:
use Ohm's law:

    V = IR

here, I = 0.04A, R = 3000Ω

    ∴   V = 0.04A x 3000Ω
             = 120.V

the voltage drop is 120.V
  

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Scholar
Karma Points: 375
Date Posted: 5/14/2008 3:14:02 AM  Status: Live
Asker's Rating: Helpful   
Response:
I*R
3000*.04=120 V



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