Physics 2 Quiz
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ELECTROMAGNETIC INDUCTION
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An ideal transformer has a primary connected to a 120 V120 \text{ V} RMS, 60 Hz60 \text{ Hz} source. The secondary is connected to a load that consists of a resistor R=10 ΩR = 10 \ \Omega in series with an inductor L=26.5 mHL = 26.5 \text{ mH}. The turns ratio is N1:N2=1:2N_1 : N_2 = 1 : 2.
What is the RMS current drawn from the primary source? (Use ω=2π(60)≈377 rad/s\omega = 2\pi(60) \approx 377 \text{ rad/s}, giving ωL≈10 Ω\omega L \approx 10 \ \Omega.)
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