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The current in a single-loop circuit with one resistance R is 4.7 A. When an additional resistance of 2.1 Ω is inserted in series with R, the current drops to 3.8 A. What is R? Number Units

The current in a single-loop circuit with one resistance R is 4.7 A. When an additional resistance of 2.1 Ω is inserted in series with R, the current drops to 3.8 A. What is R? Number Units

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The current in a single-loop circuit with one resistance R is 4.7 A . When an additional resistance of 2.1 Ω is inserted in series with R , the current drops to 3.8 A. What is R ?
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