Math Problem Statement
Angela is an electrical engineer who is testing the voltage of a circuit given a certain current and resistance. She uses the following formula to calculate voltage: voltage = (current)⋅(resistance) The circuit she tests has a current of 3 + j4 amps and a resistance of 4 – j6 ohms. What is the voltage of the circuit?
Solution
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Math Problem Analysis
Mathematical Concepts
Complex Numbers
Algebra
Electrical Engineering
Formulas
voltage = (current) ⋅ (resistance)
Multiplication of complex numbers: (a + jb) ⋅ (c + jd) = (ac - bd) + j(ad + bc)
Theorems
Distributive Property of Complex Numbers
Ohm's Law in Complex Form
Suitable Grade Level
Grades 11-12, College-level Electrical Engineering
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