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Question:

Resistor and inductor circuit?

A 100 mH inductor is in series with a resistance R 1.1 Ω.If a current I Acos(ωt) is applied, to this circuit, find the frequency at which:The voltage amplitude across the resistance is 1% of the voltage amplitude across the inductor.Please show me how to do this question with the working out and explanation because i have tried for hours and am getting very annoyed i really need help.thanks

Answer:

It is where I * R I * ω * L / 100 or R 2 pi f * L / 100 or f 100 * R / (2 * pi * L) 110 / (6.2832 * 0.10) 175.1 Hz

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