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व्हाई इज एलइडी और कंपास नीडल यूज्ड इन टेस्ट समटाइम diagram |
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Answer» ong>ANSWER: led or compass needle is used in tester SOMETIME because even if there is very low conductivity of current, the light glows and so we can find out if SOMETHING conducts electricity or not. Explanation: pls MARK me as brainliest |
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