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13. Electrons are emitted from a conductor when the conductor is A. cooled rapidly. B. subjected to a small voltage. C. bombarded by high-speed electrons. D. exposed to weak ligh
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Asked 4/16/2018 1:48:15 PM
Updated 4/16/2018 3:46:53 PM
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User: 13. Electrons are emitted from a conductor when the conductor is A. cooled rapidly. B. subjected to a small voltage. C. bombarded by high-speed electrons. D. exposed to weak ligh

Weegy: Electrons are emitted from a conductor when the conductor is subjected to a small voltage. [ ]
Expert answered|Score .8093|mothsong|Points 162|

User: 14. If a bar of copper is brought near a magnet, the copper bar will be A. unaffected by the magnet. B. attracted by the magnet. C. repelled by the magnet. D. made into an induced magne

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Asked 4/16/2018 1:48:15 PM
Updated 4/16/2018 3:46:53 PM
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If a bar of copper is brought near a magnet, the copper bar will be unaffected by the magnet.
Added 4/16/2018 3:46:53 PM
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5. According to the information in your study unit, which of the following locations requires the highest illuminance? A. A school locker room B. A study area C. A residential stairway D. A bank lobby
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Updated 130 days ago|7/16/2020 3:39:32 PM
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According to the information in your study unit, A study area requires the highest illuminance.
Added 130 days ago|7/16/2020 3:39:32 PM
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The glow emitted by a substance exposed to external radiation is called A. bioluminescence. B. luminescence. C. phosphorescence. D. fluorescence
Weegy: The glow emitted by a substance exposed to external radiation is called Fluorescence. User: The bending of light as it passes into a transparent material of different optical intensity is known as A. refraction. B. conversion. C. aberration. D. reflection. Weegy: The bending of light as it passes into a transparent material of different optical intensity is known as refraction. User: In which of the following materials is the velocity of light greatest? A. Fused quartz B. Water C. Crown glass D. Air Weegy: The velocity of light is greatest in AIR. User: Which one of the following scientists did not study the properties of light? A. Newton B. Kepler C. Maxwell D. Einstein (More)
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Updated 7/13/2018 7:51:01 PM
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Kepler did not study the properties of light.
Added 7/13/2018 7:51:01 PM
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1. A battery consists of five dry cells connected in series. If the voltage developed by each cell is 1.5 V, the total voltage developed by the battery is A. 7.5 V. B. 0.3 V. C. 1.5 V. D. 5.0 V.
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Updated 9/14/2018 11:00:49 PM
1 Answer/Comment
A battery consists of five dry cells connected in series. If the voltage developed by each cell is 1.5 V, the total voltage developed by the battery is 7.5 V.
1.5*5 = 7.5
Added 9/14/2018 11:00:49 PM
This answer has been confirmed as correct and helpful.
10. Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in A. the direction opposite to the current. B. the same direction as the current. C. a clockwise direction. D. a counterclockwise direction.
Weegy: The lines of magnetic force at any point in the magnetic field will act in: a clockwise direction. User: 11. What bias conditions must be present for the normal operation of a transistor amplifier? A. Both junctions must be reverse biased. B. The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased. C. Both junctions must be forward biased. D. The emitter-base junction must be reverse biased, and the collector-base junction must be forward biased (More)
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Updated 52 days ago|10/2/2020 7:21:15 PM
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The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased is bias conditions must be present for the normal operation of a transistor amplifier.

Added 52 days ago|10/2/2020 7:21:15 PM
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12. 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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Updated 10/23/2019 1:46:36 PM
1 Answer/Comment
The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be attracted to the anode instead of the grid.
Added 10/23/2019 1:46:36 PM
This answer has been confirmed as correct and helpful.
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