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When an electric current flows through a long conductor, each free electron moves A. from one end of the conductor to the other end. B. back and forth between the ends of the conductor. C. through a relatively short distance. D. with a speed of 300,000,000 m/s.
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Question|Asked by terrellfrank
Asked 4/6/2018 11:06:20 AM
Updated 49 days ago|10/11/2020 3:08:41 PM
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User: When an electric current flows through a long conductor, each free electron moves A. from one end of the conductor to the other end. B. back and forth between the ends of the conductor. C. through a relatively short distance. D. with a speed of 300,000,000 m/s.

Weegy: When an electric current flows through a long conductor, each free electron moves through a relatively short distance.
Expert answered|Score 1|cutyglyde|Points 451|

User: In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the A. cathode. B. grid. C. anode. D. deflecting plate.

Weegy: In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the grid.
Expert answered|Score 1|shifa saleheen|Points 9792|

User: A circuit contains two devices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms, the total resistance of the two devices is A. 0.333 ohms. B. 3 ohms. C. 16 ohms. D. 0.0625 ohms.

Question|Asked by terrellfrank
Asked 4/6/2018 11:06:20 AM
Updated 49 days ago|10/11/2020 3:08:41 PM
1 Answer/Comment
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A circuit contains two devices that are connected in parallel, If the resistance of one of the devices is 12 ohms and the resistance of the other device is 4 ohms, The total resistance of the two devices is 3 ohms. Solution: 12 x 4 divided by 12 + 4 = 48/16 = 3.
Added 49 days ago|10/11/2020 3:08:41 PM
This answer has been confirmed as correct and helpful.
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Added 218 days ago|4/25/2020 7:24:19 PM
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Question|Asked by terrellfrank
Not Answered
Updated 7/4/2019 1:19:45 PM
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If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is 8 lux.
Solution:
E = I / s²; E = 72/9 = 8 lux.
Added 7/4/2019 1:19:45 PM
This answer has been confirmed as correct and helpful.
Which of the following occurs when light is reflected from a rough or unpolished surface? A. The original pattern of the light is distorted. B. The angle of reflection is less than the angle of incidence. C. The angle of reflection is greater than the angle of incidence. D. The original pattern of the light is preserved.
Weegy: The original pattern of the light is distorted, this occurs when light is reflected from a rough or unpolished surface. User: When an object is placed 8 millimeters from a concave spherical mirror, a clear image can be projected on a screen 16 millimeters in front of the mirror. If the object has a height of 4 millimeters, the height of the image is A. 4 millimeters. B. 2 millimeters. C. 8 millimeters. D. 12 millimeters. (More)
Question|Asked by terrellfrank
Updated 43 days ago|10/17/2020 11:12:18 PM
1 Answer/Comment
When an object is placed 8 millimeters from a concave spherical mirror, a clear image can be projected on a screen 16 millimeters in front of the mirror. If the object has a height of 4 millimeters, the height of the image is 8 millimeters.

M = i / p m = 16 mm / 8 mm m = 2 mm 2 x 4 mm = 8 mm.
Added 43 days ago|10/17/2020 11:12:18 PM
This answer has been confirmed as correct and helpful.
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Weegy: When all parts of a circuit are composed of conducting materials, the circuit is said to be closed. (More)
Question|Asked by terrellfrank
Expert Answered
Asked 4/6/2018 11:05:12 AM
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