Physics, 07.11.2019 05:31 pamelakroll98
Acurrent of 16.0 ma is maintained in a single circular loop of 1.90 m circumference. a magnetic field of 0.790 t is directed parallel to the plane of the loop.(a) calculate the magnetic moment of the loop. ma ¡ m2(b) what is the magnitude of the torque exerted by the magnetic field on the loop? mn ¡ m
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 ât. the resistance of the coil is r, and the total charge is q = iât, 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 âswipedâ 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 âswipedâ through the reader at exactly the right speed? why or why not?
Answers: 2
Physics, 22.06.2019 11:30
You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?
Answers: 2
Physics, 22.06.2019 14:30
Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o
Answers: 1
Physics, 22.06.2019 20:00
Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?
Answers: 3
Acurrent of 16.0 ma is maintained in a single circular loop of 1.90 m circumference. a magnetic fiel...
Mathematics, 25.08.2021 02:30
History, 25.08.2021 02:30
Mathematics, 25.08.2021 02:30
Mathematics, 25.08.2021 02:30
Mathematics, 25.08.2021 02:30
Mathematics, 25.08.2021 02:30
Mathematics, 25.08.2021 02:30