WEBVTT

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To understand the phase shift: AC power supply, resistor and coil in series!

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Ammeter in series, voltmeter and blue channel in parallel on the coil

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The red curve of the oscilloscope in parallel on the resistance to display the intensity

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There is a phase shift between the intensity, the delay, and the voltage

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20.5 V / 230 mA or about Z = 90 ohm

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We measure the offset by a rule ... of 3!

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Screen = 20 cm for 360 °, offset = about 4 cm or # 72 ° ...

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In the course, we will detail the reasons and values of the phase shift