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Unitati de masura în S.I. - Politehnica University of ...

Unit i de m sur n Nr. Denumire m rime Unitate de m sur Submultipli ai unit ii de m sur Multipli ai unit ii de m sur Unit i practice crt. 2 -2 -3. 1 Masa [kg] - Kilogram 1 kg = 10 hg =10 dag = 1 kg =10 q ==10 t 3 4 5 6 9. =10 g=10 dg=10 cg=10 mg=10. g 2 3 -1 -2 -3. 2 Lungime [m] - metru 1 m = 10 dm =10 cm = 10 mm = 1 m = 10 dam =10 hm =10. 6 9 10 12 -6 -9. 10 m =10 nm =10 =10 pm km = 10 Gm =10 Tm 3 Timp [s] secund 1 zi = 24 h = 1440 min = 86 400 s 1 min = 60 s; 1 h = 60 min = 3600. s 4 Temperatura absoluta [K] grad Kelvin 3 6 9 -3 -6.

20 For ţa [N] – Newton 1N=10 3mN=10 6 µN 1 N =10-3kN =10-6MN = 10-9GN 21 Capacitatea electric ă [F] – Farad 1F=10 3mF=10 6 µF= 10 9nF=10 12 pF 22 Inductan ţa [H] – Henry 1H=10 3mH=10 6 µH 23 Permitivitate electric ă [F/m] – Farad pe metru 1F/m = 10 3mF/m = 10 6µF/m = 10 9nF/m 24 Permeabilitate magnetic ă [H/m] – Henry pe metru 1H/m = 10 3mH/m = 10 6µH/m =

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Transcription of Unitati de masura în S.I. - Politehnica University of ...

1 Unit i de m sur n Nr. Denumire m rime Unitate de m sur Submultipli ai unit ii de m sur Multipli ai unit ii de m sur Unit i practice crt. 2 -2 -3. 1 Masa [kg] - Kilogram 1 kg = 10 hg =10 dag = 1 kg =10 q ==10 t 3 4 5 6 9. =10 g=10 dg=10 cg=10 mg=10. g 2 3 -1 -2 -3. 2 Lungime [m] - metru 1 m = 10 dm =10 cm = 10 mm = 1 m = 10 dam =10 hm =10. 6 9 10 12 -6 -9. 10 m =10 nm =10 =10 pm km = 10 Gm =10 Tm 3 Timp [s] secund 1 zi = 24 h = 1440 min = 86 400 s 1 min = 60 s; 1 h = 60 min = 3600. s 4 Temperatura absoluta [K] grad Kelvin 3 6 9 -3 -6.

2 5 Intensitatea curentului [A] - Ampere 1A=10 mA=10 A=10 nA 1A=10 kA=10 MA. electric 2 2 3 2 2. 6 Densitatea de curent electric [A/m ] amper pe metru p trat 1A/m = 10 A/mm [A/mm ]. 7 Intensitatea luminoasa [cd] Candela -3. 8 Cantitatea de substan [mol] 1mol=10 kmol 3 6 -3 -6 -9. 9 Puterea [W] Watt 1W=10 mW=10 W 1W=10 kW =10 MW = 10 GW [CP] cal putere 1CP = 735,49875 W. 2 3 6 -3 -6 - 10 Presiunea [N/m ] Newton/ metru p trat 1Pa=10 mPa=10 Pa 1Pa =10 kPa =10 Mpa = 10 bar 9 5. sau [Pa] Pascal Gpa 1bar = 10 Pa 3 -3 -6 -9.

3 11 Rezisten a electric [ ] Ohm 1 =10 m = 1 =10 k =10 M = 10 G . 6 9. 10 =10 n . 3 6 -3 -6 -9. 12 Tensiunea electric [V] Volt 1V=10 mV=10 V 1 V =10 kV =10 MV =10 GV. 3 6 -3 -6. 13 Intensitatea c mpului electric [V/m] Volt pe metru 1 V/m = 10 mV/m = 10 V/m 1 V/m = 10 kV/m = 10 MV/m 3. 14 Sarcina electric [C] Coulomb 1C = 10 mC =. 6 9 12. 10 C = 10 nC = 10 pC. 3 6 9. 15 Induc ia magnetic [T] Tesla 1T = 10 mT=10 T = 10 nT = [Gs] Gauss 12 4. 0 pT 1T = 10 Gs 3 -3 -6. 16 Intensitatea c mpului [A/m] Amper pe metru 1A/m=10 mA/m 1A/m = 10 kA/m = 10 MA/m magnetic 3 6.

4 17 Fluxul magnetic [Wb] Weber 1Wb = 10 mWb = 10 Wb 3 6 -3 -6 -9. 18 Energia [J] Joule 1J=10 mJ=10 J 1 J =10 kJ =10 MJ = 10 GJ. 3 6 -3 -6 -9. 19 Energia electric activ sau [J] Joule 1J=10 mJ=10 J 1 J =10 kJ =10 MJ = 10 GJ [kWh] Kilowattor . 5. energia electric 1kWh = 36*10 J. -3. 1kWh=10 MWh =. -9. 10 TWh 3 6 -3 -6 -9. 20 For a [N] Newton 1N=10 mN=10 N 1 N =10 kN =10 MN = 10 GN. 3 6. 21 Capacitatea electric [F] Farad 1F=10 mF=10 F=. 9 12. 10 nF=10 pF. 3 6. 22 Inductan a [H] Henry 1H=10 mH=10 H. 3 6. 23 Permitivitate electric [F/m] Farad pe metru 1F/m = 10 mF/m = 10 F/m =.

5 9. 10 nF/m 3 6. 24 Permeabilitate magnetic [H/m] Henry pe metru 1H/m = 10 mH/m = 10 H/m =. 9. 10 nH/m 3 6 -3 -6. 25 Rezistivitate [ /m] Ohm pe metru 1 /m = 10 m /m = 10 /m 1 /m==10 k /m ==10 M /m 3 6 -3 -6. 26 Conductivitate [S/m] Siemens pe metru 1 S /m = 10 mS/m = 10 S/m 1S/m==10 kS/m ==10 MS/m 2 2 3 2 6 2. 27 Induc ie electric [C/m ] Coulomb pe metru 1C/m = 10 mC/m = 10 C/m p trat 2 2 3 2 6 2. 28 Polariza ie electric [C/m ] Coulomb pe metru 1C/m = 10 mC/m = 10 C/m p trat 3 -3 -6. 29 Magnetiza ie [A/m] Amper pe metru 1A/m=10 mA/m 1A/m = 10 kA/m = 10 MA/m 3.

6 30 Flux electric [C] Coulomb 1C = 10 mC =. 6 9 12. 10 C = 10 nC = 10 pC. 3 6 -3 -6 -9. 31 Putere electric activ [W] watt 1W=10 mW=10 W 1W=10 kW =10 MW = 10 GW. 3 6 -3 -6. 32 Putere electric reactiv [Var] Volt amper reactiv 1 Var=10 mVAr=10 VAr 1 Var=10 kVAr =10 MVAr =. -9. 10 GVAr 3 -3 -6 - 33 Putere aparent [VA] Volt amper 1VA=10 mVA= 1VA=10 kVA =10 MVA = 10. 6 9. 10 VA GW. 3 -3 -6. 34 Putere deformant [Vad] Volt amper deformant 1 Vad=10 mVAd= 1 Vad=10 kVAd =10 MVAd =. 6 -9. 10 VAd 10 GVAd 3 6 -3 -6. 35 Energia electric reactiv [VArs] Volt-amper reactiv or 1 VArs=10 mVArs =10 VArs 1 VArs =10 kVArs =10 MVArs = [kVArh] Kilovar or.

7 -9 5. 10 GVArs 1kVArh = 36*10 VArs -3. 1kVArh=10 MVArh =. -9. 10 TVArh


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