Physics 1 Problem Solutions 204

# Physics 1 Problem Solutions 204 - 200 Chapt 26 Capacitors...

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200 Chapt. 26 Capacitors and Capacitance 026 qmult 00700 1 4 3 easy deducto-memory: capacitor formulae 7. The capacity formulae for the three ideal, high-symmetry, vacuum-separated capacitors— planar, cylindrical, and spherical—in order are: a) C = q V C eq = s i C i 1 C eq = s i 1 C i . b) u = 1 2 ε 0 E 2 ε = κε 0 v E = q 4 πκε 0 r 2 ˆ r . c) C = εA d C = 2 πεL ln( r outer /r inner ) C = 4 πε r inner 1 r inner /r outer . d) C = 2 πεL ln( r outer /r inner ) C = εA d C = 4 πε r inner 1 r inner /r outer . e) C = 4 πε r inner 1 r inner /r outer C = εA d C = 2 πεL ln( r outer /r inner ) . 026 qmult 00800 1 1 5 easy memory: capacitors in parallel 8. If you have a set of { C i } capacitances in parallel, then the equivalent capacitance C equ is given by: a) 1 /C equ = i 1 /C i . b) 1 /C equ = i C i . c) C equ = i 1 /C i . d) 1
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