Physics, 31.08.2019 03:30 sciencegeekgirl2017
A9 µf capacitor and a 16 h inductor are connected in series with a 60 hz source whose rms output is 116 v. find the rms current in the circuit. answer in units of ma.
Answers: 3
Physics, 21.06.2019 22:00, penaabel6202
Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch
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Physics, 22.06.2019 07:10, cannan
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, 22.06.2019 11:30, lifeofabe214
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
A9 µf capacitor and a 16 h inductor are connected in series with a 60 hz source whose rms output is...
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