HRS - Ask. Learn. Share Knowledge. Logo

In History / High School | 2025-07-07

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

Asked by ashley2121212121

Answer (2)

China was the last country to formally join the Allied Powers, officially recognizing their alliance after the United States' entry into World War II. The contributions of China played a vital role in combating Japan. The Allied coalition included early members like Great Britain and France and later, the U.S. after Pearl Harbor. ;

Answered by GinnyAnswer | 2025-07-07

To calculate the number of electrons flowing through a device that delivers a current of 15.0 A for 30 seconds, we first find the total charge using the formula Q = I × t . The result is 450 C , and dividing this by the charge of an electron yields approximately 2.81 × 1 0 21 electrons. Thus, 2.81 × 1 0 21 electrons flow through the device in that time frame.
;

Answered by Anonymous | 2025-07-13

Related Questions in History

[Done] What did the Puntans form to establish their own New World colony? A. the Mayflower Compact B. the Virginia Company C. the Massachusetts Bay Company D. the Jamestown settlement

[Done] For each item listed, identify whether it was a provision of the Land Ordinance of 1785 or the Northwest Ordinance of 1787. Banned slavery Reserved a section of land for public schools Divided land into townships

[Done] Heavily recruited from members of the construction trades, this unit of the military helped build installations at home and abroad during World War II. What was it called? A. Builders' Brigades B. Seabees C. Construction Cadres D. Military Masons

[Done] What was true of the first settled communities in Ancient America? A. They developed egalitarian social relations B. They practiced slash and burn agriculture C. It led to increasing pastoralism D. It led to increasing urbanization

[Done] Did the Progressive Era changes, like breaking up big companies, giving women the right to vote, and making new government rules, really fix the problems caused by big cities and factories? Why or why not?