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ISM chapter26 kho tài liệu bách khoa

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Nội dung chi tiết: ISM chapter26 kho tài liệu bách khoa

ISM chapter26 kho tài liệu bách khoa

26Capacitance and DielectricsCHAPTER OUTLINE26.1Definition of Capacitance26.2Calculating Capacitance26.3Combinations of Capacitors26.4Energy Stored in

ISM chapter26 kho tài liệu bách khoan a Charged Capacitor26.5Capacitors with Dielectrics26.6Electric Dipole in an Electric Field26.7An Atomic Description of Dielectrics1* An asterisk ind

icates a question or problem new to this edition jANSWERS TO OBJECTIVE QUESTIONSOQ26.1(i)Answer (a). Because c = Ke0 A/d and the dielectric constant V ISM chapter26 kho tài liệu bách khoa

increases. (ii)Answer (a). Because AV is constant, and c increases, so Q = CaV increases. (iii)Answer (c). (iv)Answer (a). Because AV is constant, an

ISM chapter26 kho tài liệu bách khoa

d c increases, U1:=~C(AV)2 increases.OQ26.2Answer (b). The capacitance of a metal sphere is proportional to its radius (C = Ọ/V = R/kf), and its volum

26Capacitance and DielectricsCHAPTER OUTLINE26.1Definition of Capacitance26.2Calculating Capacitance26.3Combinations of Capacitors26.4Energy Stored in

ISM chapter26 kho tài liệu bách khoa looming. All Right!. Reserved. May not be wanned, copied or duplicated, or posted to a publicly accOittble website. In whole or in part152 Capacitanc

e and DielectricsOQ26.3OQ26.4Answer (a).^_Ke()Ad(l.OOx 102)(8.85xl0'12 C2/N•m2)(1.00xl(r4 m2)l.OOxlO"3 m= 8.85xlO'"F or 88.5 pFAnswer (c). The voltage ISM chapter26 kho tài liệu bách khoa

remains constant, but c decreases by a factor of 2 because c = K‘t0 A/d -» \*e0 A/(2d) = C/2. Therefore,ư£=|c(AV)2- (|)[|c](AV)24UeOQ26.5OQ26.6OQ26.7

ISM chapter26 kho tài liệu bách khoa

OQ26.8Answer (b). Choice (a) is not true because 1 /c^ is always larger than 1/Cj + 1/C2 + 1/Cy Choice (c) is not true because capacitors in series ca

26Capacitance and DielectricsCHAPTER OUTLINE26.1Definition of Capacitance26.2Calculating Capacitance26.3Combinations of Capacitors26.4Energy Stored in

ISM chapter26 kho tài liệu bách khoae charge.Answer (b). Let c = the capacitance of an individual capacitor, and C5 represent the equivalent capacitance of the group in series. While bei

ng charged in parallel, each capacitor receives chargeQ = CaV ISM chapter26 kho tài liệu bách khoa

26Capacitance and DielectricsCHAPTER OUTLINE26.1Definition of Capacitance26.2Calculating Capacitance26.3Combinations of Capacitors26.4Energy Stored in

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