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Unformatted text preview: 2 54. (a) Inside the gap of the capacitor, B1 = µoid r1 /2πR (Eq. 32-16); outside the gap the
magnetic field is B2 = µoid /2πr2 (Eq. 32-17). Consequently, B2 = B1R /r1 r2 = 16.7 nT.
2 (b) The displacement current is id = 2πB1R /µor1 = 5.00 mA. ...
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