Consider Figure 1. If the current flowing through the 5.7 resistor is 1.5 Amperes, determine the value of the supply voltage. [18] 4.4 Ω 2.8 Ω E₁ = ? 3.9 Ω b 8.8 Ω K wwwwww 7.5 Ω www 6.3 Ω 5.7 Ω Figure 1 wwww 4.2 Ω