SOLUTION: the current I in an electrical conductor varies inversely as the resistance R of the conductor. If the current is 1/2 ampere when the resistance is 240 ohms, what is the current wh

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Question 430751: the current I in an electrical conductor varies inversely as the resistance R of the conductor. If the current is 1/2 ampere when the resistance is 240 ohms, what is the current when the resistance is 540 ohms?
Found 2 solutions by stanbon, richard1234:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
the current I in an electrical conductor varies inversely as the resistance R of the conductor.
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I = k/R
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Solve for "k" using "the current is 1/2 ampere when the resistance is 240 ohms"
(1/2) = k/240
k = 120
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Equation:
I = 120/R
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What is the current when the resistance is 540 ohms?
I = 120/540
I = 2/9
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Cheers,
Stan H.
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Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
I = V/R (using V for voltage, Ohm's law)

1%2F2+=+V%2F240

V+=+120 volts

Then, the current at 540 ohms resistance will be I%5B2%5D+=+120%2F540+=+2%2F9 ampere