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Answer the following question: Three res...

Answer the following question:
Three resistances `x_1, x_2 and x_3` are connected in series in a circuit . X is the effective resistance. The properties observed for these different ways of connecting `x_1, x_2` and `x_3` are given below. Write the way in which they are connected in each case.(I-current, V-potential difference, x-effective resistance)
Current I flows through `x_1, x_2` and `x_3`.

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