Why do charging cables not spark when held close to the intended device? 1.73K viewsJanuary 3, 2024 Question90.64K June 5, 2019 0 Comments close as in almost touching but not inserted. In: Engineering 7 Answers ActiveNewestOldest Anonymous Posted June 5, 2019 0 Comments There’s not enough voltage (potential difference) to jump a gap or create a visible spark. Higher voltages can jump further – lightning is many millions of volts. Your USB cable is 5v. You are viewing 1 out of 7 answers, click here to view all answers. Register or Login
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