Asked Dec 19, 2019

Two resistors connected in series have an equivalent resistance
of 690 Ω. When they are connected in parallel, their equivalent resistance is 150 Ω. Find the resistance of each resistor.


Expert Answer

Step 1



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R, = 150N R = 690N

Step 2

Equivalent resistance for series combination can be calculated as


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R, R + R, 690 = R, + R, R = 690 – R,..(1)

Step 3

Equivalent resistance for parallel co...


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1 1 1 R, R R, R, + R RR, 150 R, (690 – R, ) = R, + 690 – R, 150 R, (690 – R, ) = 690 ×150 %3D 690R, – R = 103500 R - 690R, +103500 = 0 690+ v6902 – 4×103500 R, 690 ± 249.20 R, R, = 469.6,220.4 other values is for R, R = 220.4N R, = 469.62 - |


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