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![How to measure usb current and voltage [Practical solution]](https://i1.wp.com/www.yamanelectronics.com/wp-content/uploads/2020/07/how-to-measure-usb-current-voltage-and-power.jpg?resize=480%2C480&ssl=1 "How to measure usb current and voltage [Practical solution]")
How to measure usb current and voltage [Practical solution]
![How to measure usb current and voltage [Practical solution]](https://i0.wp.com/www.yamanelectronics.com/wp-content/uploads/2020/07/measuring-usb-current-and-voltages-by-multimeter.png?resize=1118%2C622&ssl=1 "How to measure usb current and voltage [Practical solution]")
How to measure usb current and voltage [Practical solution]
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What voltage is in a phone micro USB? Is it more than 3.7V so it can power a little amplifier? - Quora
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18V from printer USB port. Is that normal? - Electrical Engineering Stack Exchange
