ISM chapter26 kho tài liệu bách khoa
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội 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 indicates 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, anISM 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 volum26Capacitance 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 Capacitance 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)24UeOQ26.5OQ26.6OQ26.7ISM 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 ca26Capacitance 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 being charged in parallel, each capacitor receives chargeQ = CaVGọi ngay
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