Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

The relationship between voltage, [tex]E[/tex], current, [tex]I[/tex], and resistance, [tex]Z[/tex], is given by the equation [tex]E=IZ[/tex].

If a circuit has a current [tex]I=3+i[/tex] and a resistance [tex]Z=2-i[/tex], what is the voltage of the circuit?

A. [tex]4 - i[/tex]
B. [tex]4 + i[/tex]
C. [tex]8 + i[/tex]
D. [tex]8 + 7i[/tex]

Sagot :

Sure, let's work through this problem step-by-step.

1. Identify the given current [tex]\(I\)[/tex]:
[tex]\[ I = 3 + 2 \][/tex]
Here, the current [tex]\(I\)[/tex] is initially given as [tex]\(3 + 2\)[/tex].

2. Calculate the resistance [tex]\(Z\)[/tex] using the given relationship:
[tex]\[ Z = 2 - I \][/tex]
Substituting the given value of [tex]\(I\)[/tex]:
[tex]\[ Z = 2 - (3 + 2) = 2 - 5 = -3 \][/tex]
So, the resistance [tex]\(Z\)[/tex] is [tex]\(-3\)[/tex].

3. Calculate the voltage [tex]\(E\)[/tex] using the formula [tex]\(E = I \cdot Z\)[/tex]:
Substitute the calculated values of [tex]\(I\)[/tex] and [tex]\(Z\)[/tex]:
[tex]\[ E = (3 + 2) \cdot (-3) \][/tex]

4. Express [tex]\(I\)[/tex] in terms of its real and imaginary parts (since we're given [tex]\(I\)[/tex] to be [tex]\(3 + 2\)[/tex], where 2 is understood to be the imaginary part here):
[tex]\[ I = 5 \text{ (no imaginary part since it simplifies to a real number)} \][/tex]

5. Calculate the voltage [tex]\(E\)[/tex], now as the product of real and imaginary parts:
For the real part:
[tex]\[ E_{\text{real}} = 5 \cdot (-3) = -15 \][/tex]
For the imaginary part:
[tex]\[ E_{\text{imag}} = 0 \text{ (since there is no imaginary part in \(I\))} \][/tex]

6. Combine the results:
[tex]\[ E = -15 + 0j \][/tex]

Thus, the voltage [tex]\(E\)[/tex] is [tex]\(-15 + 0j\)[/tex], which is simply [tex]\(-15\)[/tex] when considering only the real number scenario. No imaginary part is present here.

So, the answer to the question is:
[tex]\[ \text{The voltage of the circuit is } -15 \][/tex]
Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.