Physics, 30.04.2021 03:00 scottytohotty
Please answer needed as soon as possible, will give brainlest...fill in the question mark area! No files, cant access on a school computer thank you The advantage of using a machine is that we apply less ??? at the input for the work done at the output.
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Physics, 21.06.2019 14:10
Asteady current of 1 ais flowing through a conducter calculate the number of electrons that flows through conductor in 1second
Answers: 1
Physics, 21.06.2019 14:30
The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. which type of wave is found in this region? a. x-rays b. ultraviolet rays c. infrared waves d. radio waves
Answers: 2
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?
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Please answer needed as soon as possible, will give brainlest...fill in the question mark area! No f...
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