A potential divider is used to give outputs of 2 V and 3 V from a 5 V source, as shown.
What are possible values for the resistances $R_1$, $R_2$ and $R_3$?
1 )
${R_1}/ kΩ: 2 , {R_2}/ kΩ: 1 , {R_3}/ kΩ: 5$
2 )
${R_1}/ kΩ: 3 , {R_2}/ kΩ: 2 , {R_3}/ kΩ: 2$
${R_1}/ kΩ: 4 , {R_2}/ kΩ: 2 , {R_3}/ kΩ: 4$
4 )
${R_1}/ kΩ: 4 , {R_2}/ kΩ: 6 , {R_3}/ kΩ: 10$
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