For Exercises 51 and 52, use the following information. In an electrical circuit, if two
Chapter 8, Problem 51(choose chapter or problem)
For Exercises 51 and 52, use the following information. In an electrical circuit, if two resistors with resistance R 1 and R 2 are connected in parallel as shown, the relationship between these resistances and the resulting combination resistance R is _1 R = _1 R 1 + _1 R 2 . 51. If R 1 is x ohms and R 2 is 4 ohms less than twice x ohms, write an expression for _1 R.
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