The Ohm's Law Pie Chart depicts the formulas for calculating any three electrical quantities. 2. Determine the external resistor required to reduce the line voltage from 120 V to 72 V for the operation of a device. The device is rated 120 V, 100W.
The Ohm's Law Pie Chart depicts the formulas for calculating any three electrical quantities. 2. Determine the external resistor required to reduce the line voltage from 120 V to 72 V for the operation of a device. The device is rated 120 V, 100W.
Chapter27: Service-entrance Equipment
Section: Chapter Questions
Problem 33R
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1. The Ohm's Law Pie Chart depicts the formulas for calculating any three electrical quantities.
2. Determine the external resistor required to reduce the line voltage from 120 V to 72 V for the operation of a device. The device is rated 120 V, 100W.
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