Suppose that a parallel-plate capacitor has circular plates with radius r = 43 mm and a plate separation of 4.3 mm. suppose also that a sinusoidal potential difference with a maximum value of 120 v and a frequency of 72 hz is applied across the plates; that is,
v = (120 v) sin[2π(72 hz)t].
find bmax(r), the maximum value of the induced magnetic field that occurs at r = r.

explanation:

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the inner core.

good luck: )

klicker

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods