Question

1. the circuit law, v = i · z, is used in circuit analysis. if i = 3i and z = 7i, what is the voltage, v? - 21 21i 21 - 21i

Explanation:

Step1: Identify the formula

The formula for voltage in circuit analysis is $V = I\cdot Z$.

Step2: Substitute given values

Given $I = 3j$ and $Z = 7j$, then $V=(3j)\times(7j)$.

Step3: Perform the multiplication

Using the property $j\times j=- 1$, we have $V = 3\times7\times j\times j=21\times(-1)=-21$.

Answer:

$-21$