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7) [full weight] Consider two concentric long solenoids (radii R,> R,) with a very thin vacuum in between. Let a time-varying

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Ansuce Given that Padii RR where tHione Consteant a. Cusent Let the ins sdenoids has the nR B- onIoe Ecgnsity 2 Tetal maretickotal qet sel nductonce Compasing bothe above cquations ue E- Piel d eveuhose, ds dt E(2T) dunI,e dt -.1 - Eler) 27 Simlasly

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