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Oct 21st 2015, 11:43 AM
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mustaphashehu1
Junior Member
Join Date: Sep 2015
Posts: 7
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
Oct 21st 2015, 12:28 PM
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ChipB
Physics Team
Join Date: Jun 2010
Location: Morristown, NJ USA
Posts: 2,322
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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