问题
单项选择题
5m的导体球作接地极，深埋于地下，土壤的导电率γ=10-2s/m，则此接地体的接地电阻应为下列哪项数值（）。
A．31.84Ω
B．7.96Ω
C．63.68Ω
D．15.92Ω
答案
参考答案：D
解析：
注意“探埋于地下”这个条件 接地电阻
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5m的导体球作接地极，深埋于地下，土壤的导电率γ=10-2s/m，则此接地体的接地电阻应为下列哪项数值（）。
A．31.84Ω
B．7.96Ω
C．63.68Ω
D．15.92Ω
参考答案：D
解析：
注意“探埋于地下”这个条件 接地电阻
| 用方框中所给的单词的适当形式填空。 | |
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