問題：
What is the difference between guarding and shielding?
答案：
Guarding utilizes a low impedance conductor, which is maintained at the same potential as the high impedance circuit, to intercept any interfering voltage or current. Shielding utilizes a conductive enclosure to prevent electrostatic interference from affecting a high impedance circuit. A guard does not necessarily provide shielding.
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常見問答集 ID 71441
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