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25. The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be A. accelerated toward the cathode. B. accelerated toward the anode. C. attracted to the cathode instead of the grid. D. attracted to the anode instead of the grid.
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Asked 7/31/2016 7:28:21 AM
Updated 8/29/2019 1:35:24 PM
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User: 24. Electrons are emitted from a conductor when the conductor is A. subjected to a small voltage. B. bombarded by high-speed electrons. C. cooled rapidly. D. exposed to weak light.

User: 25. The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be A. accelerated toward the cathode. B. accelerated toward the anode. C. attracted to the cathode instead of the grid. D. attracted to the anode instead of the grid.

Weegy: D. accelerated toward the anode. The anode is positively charged to attract the electrons coming from the cathode. The electrons, being negatively charged, will not be attracted to the grid.
eturker|Points 3077|

User: within mammals? A. Mammals use a closed, single-loop circulatory system aided by a four-chambered heart. B. Mammals use an open, double-loop circulatory system aided by a four-chambered heart. C. Mammals use a closed, double-loop circulatory system aided by a four-chambered heart. D. Mammals use a closed, single-loop circulatory system aided by a three-chambered heart.

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Asked 7/31/2016 7:28:21 AM
Updated 8/29/2019 1:35:24 PM
2 Answers/Comments
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Added 8/29/2019 1:34:51 PM
Deleted by Wallet.ro [8/29/2019 1:34:58 PM]
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Mammals use a closed, double-loop circulatory system aided by a four-chambered heart.
Added 8/29/2019 1:35:24 PM
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