Physics, 29.11.2021 08:10 braydenmcd02
What is resistance of a power grid that has voltage of 25,000 volts 1400 amps
Answers: 3
Physics, 21.06.2019 22:30
Select the word from the list that best fits the definition classification of most stars on the h-r diagram
Answers: 1
Physics, 22.06.2019 07:10
Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ∆t. the resistance of the coil is r, and the total charge is q = i∆t, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly “swiped” past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be “swiped” through the reader at exactly the right speed? why or why not?
Answers: 2
Physics, 23.06.2019 01:40
When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.
Answers: 3
What is resistance of a power grid that has voltage of 25,000 volts 1400 amps...
Mathematics, 13.07.2021 09:10
Mathematics, 13.07.2021 09:10
History, 13.07.2021 09:10
Mathematics, 13.07.2021 09:10
Mathematics, 13.07.2021 09:10
Mathematics, 13.07.2021 09:10
Social Studies, 13.07.2021 09:10
Social Studies, 13.07.2021 09:10
Mathematics, 13.07.2021 09:10