Mark Wickens

5 GOTO10010
10 DATAOhm's law,"V=IR   (I=Q/t , R=➂・l/S)",10,20,1,3E40484830
20 DATAResistance,"R=R➀+R➁ , 1/R=1/R➀+1/R➁",10,30,
30 DATADC circuit,V=E-IR,20,40,
40 DATADC power & Joule heat,"P=IV=I²R , W=IVt=Pt",30,50,
50 DATAConductance,G=1/R=I/V,40,60,
60 DATAKirchhoff's law,"∑±I=0 , ∑±V=0",50,70,
70 DATAWheatstone bridge,R₀R➀=R➁R➂,60,80,1,2A2A3E0000
80 DATAAC instantaneous value,"V=V₀・sin➃t , I=I₀・sin➃t",70,90,
90 DATAAC effective value,"I=I₀/√2 , V=V₀/√2",80,100,
100 DATAAC power,P=VI=V₀I₀/2,90,110,
110 DATAPower factor,P=VI・cos𝜙,100,120,
120 DATATransformer,"I➀V➀=I➁V➁ , N➁/N➀=V➁/V➀",110,130,
130 DATAReactance,"X=➃L=2πfL , X=1/➃C=1/2πfC",120,140,
140 DATAImpedance,"Z=√(R²+(➃L-1/➃C)²) , V₀=ZI₀",130,150,
150 DATANatural frequency (circuit),f₀=1/2π√(LC),140,160,
160 DATAElectric oscillation,1/2・Q²/C+1/2・LI²=Constant,150,160,
10010 MODE8:DIM:x=10:y=160:r=x
10020 DEFCHR$(255)="3E020C223E"
10040 DEFCHR$(253)="2E2A3A0000"
10050 DEFCHR$(252)="123E020000"
10110 RESTORE(r)
10120 CLS:READm$,n$,b,c,d:IFd=1 THENREADd$:DEFCHR$(254)=d$
10130 l$="["+MID$(STR$(r/10),2)+"]":l=32-LEN(l$)
10140 PRINTm$;TAB(l);l$;n$;
10150 z=ASC(INPUT$(1,@))
10170 IFz=29 ANDr<>x THENr=x:GOTO10110
10180 IFz=28 ANDr<>y THENr=y:GOTO10110
10190 IFz=30 ANDr<>b THENr=b:GOTO10110
10200 IF(z=31 ORz=13) ANDr<>c THENr=c:GOTO10110
10280 GOTO10150