In Electronics, the Formula $V = I R$ Is Called Ohm's Law

question 44

Multiple Choice

In electronics, the formula $V = I R$ is called Ohm's law. It gives the relationship in a circuit between the voltage $V$ (in volts) , the current $I$ (in amperes) , and the resistance $R$ (in ohms) .
Find $\mathrm { V }$ when $I = 8 - 7 i$ amperes and $R = 2 + 8 i$ ohms.

• A) \(\quad V = i\) volts
• B) \(V = 72 + 78 i\) volts
• C) \(\quad V = 72\) volts
• D) \(V = 78\) volts
• E) \(\quad V = 72 + 50 i\) volts

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