Physics education research, electronic materials, and the musings of Christopher Moore, Ph.D.
Physics education research, electronic materials, and the musings of Christopher Moore, Ph.D.
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When two resistors are connected in series, the equivalent resistances is 100 ohms. When they are connected in parallel, the equivalent resistance is 30 ohms. What are the resistances of the resistors.
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This is a wrong question. Try out the following: r1+r2 =100; 1/r1 +1/r2 =1/30 Simplify and put r1+r2 =100 and calculate r1 x r2
Next (r1-r2) square= ( r1+ r2) square -4 r1 x r2
Put the values and you tend to get imaginary values.
Some data is wrong. 
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