HRS - Ask. Learn. Share Knowledge. Logo

In Physics / College | 2025-07-03

An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

Asked by gomezm4502

Answer (2)

To find the number of electrons flowing through a device with a current of 15.0 A for 30 seconds, we calculate the total charge delivered as 450 C. Dividing this charge by the charge of a single electron (approximately 1.6 × 1 0 − 19 C) gives about 2.81 × 1 0 21 electrons. Thus, approximately 2.81 × 1 0 21 electrons flow through the device during this time.
;

Answered by Anonymous | 2025-07-04

The War of 1812 led to significant land loss for many American Indian groups as settlers expanded westward. Some tribes continued to resist through conflict, while a few sought cooperation with settlers. Ultimately, the war intensified the struggles faced by Native Americans in retaining their lands and sovereignty. ;

Answered by GinnyAnswer | 2025-07-04

Related Questions in Physics

[Done] Which best explains what happens when an electron moves from an excited state to the ground state? A. The electron absorbs energy as it moves to a lower energy level. B. The electron absorbs energy as it moves to a higher energy level. C. The electron releases energy as it moves to a higher energy level. D. The electron releases energy as it moves to a lower energy level.

[Done] Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion about Particles A and B? A. They have the same charge. B. They are located in the nucleus together. C. Particle A has a positive charge, and Particle B is neutral. D. Particle A orbits the nucleus, and Particle B is located in the nucleus.

[Done] Light of wavelength [tex]$5 \times 10^{-7} m$[/tex] falls on a sensitive metal plate with photoelectric work function 1.90 eV. Find the kinetic energy of the photoelectrons emitted and the stopping potential. (given [tex]$h =6.62 \times 10^{-34} Js$[/tex])

[Done] Taden has found a table of the atmospheric layers of the Sun. However, he can't make out the names of the layers in the chart. [tex] \begin{tabular}{|l|l|l|l|} \hline & \multicolumn{1}{|c|}{ A } & \multicolumn{1}{c|}{ B } & \multicolumn{1}{c|}{ C } \\ \hline Position & Lowest & Middle & Outermost \\ \hline Thickness & 100 km & 2000 km & Millions of kilometers \\ \hline Temperature & 5,500 & 6,000 to 20,000 & $2,000,000$ \\ \hline \end{tabular} [/tex] What are the names of the Sun's layers described in columns A, B, and C? A. Corona; B: Photosphere; C: Chromosphere B. Core; B: Chromosphere; C: Photosphere C. Chromosphere; B: Corona; C: Core D. Photosphere; B: Chromosphere; C: Corona

[Done] Charges of +5 C and -9 C are at a distance of 1 m from each other. Which diagram represents the force between the two charges?