变阻器调节灯泡亮度WL16-4-1.2
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变阻器WL16-4-1
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题 1 of 2
1. 题
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类别:变阻器WL16-4-1
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(1)图中电路闭合开关,滑动变阻器滑片向左移动时,变阻器接入的电阻丝变 (填“长”或“短”);电阻变 (填“大”或“小”);电流变 (填“大”或“小”);灯泡变 (填“亮”或“暗”)。
(2)滑片移到最右端时,电阻最 (填“大”或“小”);电流 变 (填“大”或“小”);此时灯泡最 (填“亮”或“暗”),可以保护电路。
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题 1 of 2
1. 题
1分(s)类别:变阻器WL16-4-1-
(1)图中电路闭合开关,滑动变阻器滑片向左移动时,变阻器接入的电阻丝变 (填“长”或“短”);电阻变 (填“大”或“小”);电流变 (填“大”或“小”);灯泡变 (填“亮”或“暗”)。
(2)滑片移到最右端时,电阻最 (填“大”或“小”);电流 变 (填“大”或“小”);此时灯泡最 (填“亮”或“暗”),可以保护电路。
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题 2 of 2
2. 题
1分(s)类别:变阻器WL16-4-1正确不正确



