(Solved): Determine the voltage of the 12 resistor in the following circuit: a.25V b.7.2V c.2.5V d.8.4V ...

Determine the voltage of the 12 ? resistor in the following circuit:

a.25V
b.7.2V
c.2.5V
d.8.4V

 

The ammeter reads 2.00 A. Using Kirchhoff's Laws, find the currents I1 and I2 and the value of the unknown source.

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\( a . I_{1}=0.71 \mathrm{~A}, l_{2}=1.29 \mathrm{~A}, \varepsilon=13 \mathrm{~V} \) b. \( l_{1}=1.29 \mathrm{~A}, l_{2}=0.71 \mathrm{~A}, \varepsilon=20 \mathrm{~V} \) c. \( \mathrm{l}_{1}=0.71 \mathrm{~A}, \mathrm{l}_{2}=2.00 \mathrm{~A}, \varepsilon=15 \mathrm{~V} \) \( d . l_{1}=2.00 \mathrm{~A}, l_{2}=6.09 \mathrm{~A}, \varepsilon=10 \mathrm{~V} \)