MasteringPhysics Homework Chapter 30, 31-Google Chrome Secure https/ C Homework

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MasteringPhysics Homework Chapter 30, 31-Google Chrome Secure https/ C Homework Chapter 30, 31 Problem 31.6 5of8 PartB Constants 1 Pedodic Tble Suppose an air-gap capacitor has circular plates of radius R 2 3 cm and separation d 1.4 mm A73.0 Hz emf ?-Eocos(wt) is applied to te capacitor The main,um displacement current is 32 A Determine the value of Express your answer to two significant figures and include the appropriate units. Es Value Units X incorrect Try Again: 5 attempts remaining Part Determine he maximum value of db/dt between the plates Neglect fringing Express your answer using two significant figures Activate Windows V-m/ O Type here to search

Explanation / Answer

b) V= d Imax / (2 pi f e0 pi R2)

= (1.4 * 10-3 * 32 * 10-6) / (2 pi * 73 * 8.85 * 10-12 * pi * 0.0232)

= 6.64 * 103 V

c)(dphiE/dt)max = Imax / e0

= (32 * 10-6) / ( 8.85 * 10?12)

= 3.6 * 106 V.m/s

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