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Old Oct 21st 2015, 11:43 AM   #1
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Resistors in series and in parallel

Two resistors connected in series have an equivalent resistance of 690 ohms. When they are connected in parallel, their equivalent resistance is 150 ohms. Find the resistance of each resistor
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Old Oct 21st 2015, 12:28 PM   #2
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If you have wire resistors A and B in series the total resistance is A+B .

If you put them in parallel, total resistance is AB/(A+B).

You have two equations in 2 unknowns - now solve for A and B.

Last edited by ChipB; Oct 21st 2015 at 01:13 PM.
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