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電子公式。
# e6 x* @; |: h, T! \# ]I=Q/t2 E A1 `7 L6 @# V% d
I:Current(A)
& W( b8 P* p6 D/ [+ [& ~- N' G9 KQ:Charge(c)
' h- f5 F- R7 j3 Bt:Time(sec)
8 e3 ^7 P! Q- i$ e* ^1 i
- \/ H+ E9 U" P# P6 }( BV=IxR7 W+ `5 r$ b! Z) J- _
I=Current(A)6 {. _: M/ A5 W! Z+ L1 d7 }! ~
R:Resistance(ohm)
; e$ b( T# I, g! I
: }, [. n5 y3 `9 X1 \/ K1 zR=pL/A. T2 V2 R4 Y) E0 M6 z3 i0 D
R:Resistance(ohm)
* Q% Y+ B4 |/ f9 n, ~, F# N( ~p:Resistivity(ohm-m)9 c* ^2 y' e' Y' @' o& y4 D8 t
L:Length(m)
& {% _& f* K4 F, i* gA:Cross sectional area(m2)9 b! Q, y% v& k+ z/ U ^" ^5 V
- A; z6 S& T' H$ _$ t. J
DC
8 c# `( @$ o7 q% G; Q2 T% FP=VxI
' h; P P) l% r1 H) a+ y e" ? or
) T7 Q- n; S9 r' {- lP=V2xR) ~1 H ?8 y2 T9 _) Y6 O7 L/ P% Y7 N
or. U& e5 d5 i4 s$ R9 A3 e& t
P=I2xR- y A% J4 D. @, v
P:Power(W)
9 I4 I8 J5 O1 r5 S/ bV:Voltage(V)
2 d( M9 f7 ^6 k/ W6 U4 eI:Current(A)$ M' V7 x Q( Y% o
R:Resistance
& p+ t* \8 T- p7 C* `& J% j ?- ~! H6 x E8 o* `9 Q7 Q
AC9 B L2 S/ ~" c1 }& J# {6 v, u
P:Power(W)
* [& w- D+ I, V# wV:Voltage(V)! Q; U1 z W+ S% z3 H
I:Current(A)& f# S3 X$ c8 E6 o
, C/ z: W5 m! {. ]5 j- _
E=(P*t)/1000
2 w! Z. E6 ~( c( |( sE:Power(W): R& o4 G, {, _7 G" a; n5 V5 K
t:time(h/day)
4 X' t" p! O4 [# ?# J+ J
9 Y N& G3 t2 e5 c; T- a! HC=Q/V2 `" P, P2 p4 G, K% u8 d' h
C:Capacitance(F)5 S. u3 \9 g1 X1 b7 a+ p' Y
Q:Charge(C)
0 w4 Y& _( ]8 pV:Voltage
( W- _7 m3 Z4 c) {: t8 C E6 a% x0 l# Z! `2 L7 ?# L! T( E/ p
Xc=1/(2丌fc)4 E4 C) v2 k3 E
Xc:Reactance(ohm)
) A+ n% [, o- y3 j) t5 E; k$ A7 S- }C:Capacitance(F)$ d. p, e( u3 x, U" J
f:Frequency(Hz). h3 @+ I8 g- Y: n+ C8 ^
+ M: F% Y. c: ?' b1 ?( L9 n
XL=2丌fL
1 a5 i+ T, a+ g. x8 {XL:Reactance(ohm)6 G& Z5 b# J+ t& S; D8 p% Y
L:Inductance(Hz). ~* q! N& h) q/ A: G( {& X
f:Frequency(Hz)* X. `5 u! }4 H! }
$ o O# c4 F$ m# A* k- |8 B4 s
/ z- D6 K+ I9 B$ R5 K |