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Why don't we get an electric shock while using a tester for checking current in a live phase? - Quora
How can a voltage screwdriver light up when I test the ground wire or chassis of my washing machine, but multimeter reads no voltage or current flow? - Quora
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How does this continuity/mains tester work? - Electrical Engineering Stack Exchange
Dangerous Device - Neon Mains Testing Screwdriver - YouTube
How does this continuity/mains tester work? - Electrical Engineering Stack Exchange
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