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sarahbug56
26.11.2019 •
Physics
Aflat, rectangular coil consisting of 60 turns measures 23.0 cm by 31.0 cm . it is in a uniform, 1.20-t, magnetic field, with the plane of the coil parallel to the field. in 0.210 s , it is rotated so that the plane of the coil is perpendicular to the field.part a what is the change in the magnetic flux through the coil due to this rotation? part b find the magnitude of the average emf induced in the coil during this rotation.
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Ответ:
25.23 V
Explanation:
Given
no of turns![N=60 turns](/tpl/images/0390/5861/cb580.png)
Magnetic Field![B=1.2 T](/tpl/images/0390/5861/5c52f.png)
Area of rectangular coil![A=23\times 31=713 cm^2\approx 0.0713m^2](/tpl/images/0390/5861/4ef7b.png)
Change in magnetic Flux is given by
(b)Emf induced change in Flux with respect to time and it can be given by
The magnitude of emf induced is![25.23 V](/tpl/images/0390/5861/0a757.png)
Ответ:
to run cars and other transportation
to start a fire
tu burn unwanted things