Math Problem Statement
De apenas a resposta correta, sem contas
O valor eficaz da tensão sobre o resistor R3, no circuito da figura, é de:
Solution
A resposta correta é: c. 81 V
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Math Problem Analysis
Mathematical Concepts
AC Circuits
Effective Voltage (RMS)
Series and Parallel Circuits
Formulas
V_RMS = V_peak / √2
Ohm's Law: V = IR
Theorems
Ohm's Law
Voltage Division in AC Circuits
Suitable Grade Level
Undergraduate Electrical Engineering
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