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# In a normal conductor heat is generated at a rate I 2R.Therefore a current-carrying

ISBN: 9781133103721 454

## Solution for problem 52 Chapter 10

Modern Physics for Scientists and Engineers | 4th Edition

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Modern Physics for Scientists and Engineers | 4th Edition

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Problem 52

In a normal conductor heat is generated at a rate I 2R.Therefore a current-carrying conductor must dissipateheat effectively or it can melt or overheat thedevice in which it is used. Consider a long cylindricalcopper wire (resistivity 1.72 108 # m) of diameter0.75 mm. If the wire can dissipate 80 W/m2 along itssurface, what is the maximum current this wire cancarry?

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Goals • To understand capacitors and calculate capacitance • To analyze networks of capacitors • To calculate the energy stored in a capacitor • To examine dielectrics and how they affect capacitance Introduction • How does a camera’s flash unit store energy • Capacitors are devices that store electric potential energy. • The energy of a capacitor is actually stored in the electric field. Capacitors and capacitance • Capacitors are devices that store electric potential energy. • The energy of a capacitor is actually stored in the electric field. • Any two conductors separated by an insulator form a capacitor • The definition of capacitance is C = Q/V . ab Parallel-plate capacitor • A parallel-plate capacitor consists of two parallel conducting plates separated by a distance that is small compared to their dimensions. • The capacitance of a parallel-plate capacitor is C =  A/d. 0 Copyright © 2012 Pearson Education Inc. Other shapes of capacitors A spherical capacitor A cylindrical capacitor Capacitors in series • Capacitors are in series if they are connected one after the other • The equivalent capacitance of a series combination is given by 1/C =eq/C + 1/1 + 1/C 2 … 3 Copyright © 2012 Pearson Education Inc. Capacitors in parallel • Capacitors are connected in parallel between a and b if the potential difference V is abe same for all the capacitors. • The equivalent capacitance of a parallel combinat

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##### ISBN: 9781133103721

Modern Physics for Scientists and Engineers was written by and is associated to the ISBN: 9781133103721. The full step-by-step solution to problem: 52 from chapter: 10 was answered by , our top Physics solution expert on 03/16/18, 03:15PM. The answer to “In a normal conductor heat is generated at a rate I 2R.Therefore a current-carrying conductor must dissipateheat effectively or it can melt or overheat thedevice in which it is used. Consider a long cylindricalcopper wire (resistivity 1.72 108 # m) of diameter0.75 mm. If the wire can dissipate 80 W/m2 along itssurface, what is the maximum current this wire cancarry?” is broken down into a number of easy to follow steps, and 60 words. This full solution covers the following key subjects: . This expansive textbook survival guide covers 15 chapters, and 898 solutions. This textbook survival guide was created for the textbook: Modern Physics for Scientists and Engineers, edition: 4. Since the solution to 52 from 10 chapter was answered, more than 247 students have viewed the full step-by-step answer.

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In a normal conductor heat is generated at a rate I 2R.Therefore a current-carrying