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Series RL: Current Amplitude

Random numbersPHZMedium

vs(t)=45cos⁡(200t) Vv_s(t) = 45\cos(200t)\ \text{V}. Find the amplitude of the steady-state current i(t)i(t), in milliamperes.

vs​45 VR10 ΩL20 mHi
mA

Answers within 2% are accepted. Units with SI prefixes work too, like 0.003 A or 3 mA. Use a minus sign for negative values.

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