salinasroel22
20.12.2019 •
Physics
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 δt. the resistance of the coil is r, and the total charge is q = iδt, where i is the average current induced by the change in flux. (use any variable or symbol stated above as necessary.)
q =
(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.
Solved
Show answers
More tips
Answers on questions: Physics
- M Medicine active listening is qn important part of communication. why is active listening important and what are four rules of active listening?...
- C Chemistry Ac A 0.60 mol sample of PCl 3 (g) in the container 0.040 M. 0.70 mol sample of Cl 2 (g) are placed a previously evacuated 1.0 L rigid container, and the reaction...
- M Mathematics Evaluate. 4\7+3\4 A 37\56 B 1 9\28 C 3\7 D 7\11...
- H History How did the the independence movement create conflict in india?...
- M Mathematics Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it. plz show all your work, Thanks :)...
Ответ:
Example: flowing of water ,a bullet fired, a moving ball.
And the The energy possessed by a body due to its position or change in shape is known as potential energy.example: a stretched rubber band, a stretched bow,water in dam.