Why such power supply with large internal resistance safer
High voltage power supplies are sometimes designed to have a rather large internal resistance as a safety precaution. Why is such a power supply with a large internal resistance safer than one with the same voltage, but lower internal resistance?
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A 13 g bullet traveling 222 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 162 m/s. If the block is stationary on a frictionless surface when hit, how fast does block move after the bullet emerges?
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Why is such a power supply with a large internal resistance safer than one with the same voltage, but lower internal resistance?
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Estimate the Calorie content of 70 g of candy from the following measurements. A 15-g sample of the candy is allowed to dry before putting it in a bomb calorimeter.
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In the TED Talk "The Urgency of Intersectionality," Kimberle Crenshaw explains how people experience overlapping forms of discrimination based on race
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