Question

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?. a. 4 – i. b. 4 + i. c. 8 + i. d. 8 + 7i

Answer 1

The correct answer is C. 8 + i

Answer 2

By definition, we have to:

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Where,

E: voltage

I: current

Z: Resistance

To calculate the voltage value, we must replace the following values in the given equation:

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We have then:

`image`

Making the product of complex numbers we have:

`image`

`image`

Answer:

the voltage of the circuit is:

`image`

option C