The relationship between voltage, e, current, i, and resistance, z, is given by the equation e = iz. if a circuit has a current i = 3 + 2i and a resistance z = 2 – i, what is the voltage of the circuit? 4 – i
4 + i
8 + i
8 + 7i

The voltage of the circuit is 8 + i

Step-by-step explanation:

∵ E = IZ

∵ I = 3 + 2i

∵ Z = 2 - i

∴ E = (3 + 2i)(2 - i) = 6 - 3i + 4i - 2i²

∴ E = 6 + i - 2(-1) ⇒ i² = -1

∴ E = 6 + i + 2 = 8 + i

the first question mark is 6 and the second question mark is 26 (the square root)

step-by-step explanation: