Draw a vector representation displaying the current and voltage you would expect to see if a coil with negligible resistance is connected to an AC line of 100 volts and draws a current of 10 amperes. Explain why the vectors appear the way they do. (Use the scale: 1 inch = 50 volts; 1 inch = 2 amperes)
What will be an ideal response?
The voltage should be drawn as a 2-inch horizontal line, pointing to the right, and labeled with a magnitude of 100 volts. The current then should appear as a 1-inch vertical, downward-pointing vector with a magnitude of 10 amperes. The angle between the vectors should be labeled as 90º. The 90º lag in current is due to inductance.
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What will be an ideal response?
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