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CAMPO ELECTRICO
Tabulación de Resultados
Primer Método
Nro ΔV(V) d(m) E1(V/m)
1 150 0.07 2143
2 200 0.07 2857
3 250 0.07 3571
4 300 0.07 4286
Promedio 3214
Segundo Método
Nro Q(C) D(m) εo (C2
/Nm2
) E2 (N/C)
1 0.1 E-8 0.225 8.85 E-12 2842
2 0.15 E-8 0.225 8.85 E-12 4263
3 0.2 E-8 0.225 8.85 E-12 5684
4 0.25 E-8 0.225 8.85 E-12 7105
Promedio 4974
Tercer Método
Nro X(m) L(m) θ (rad) q(C) d(m) K(Nm) E3 (N/m)
1 0.008 3.624 5.5 E-4 4.5 E-9 0.13 1.16 E-3 2188
2 0.013 3.624 6.9 E-4 4.5 E-9 0.13 1.16 E-3 3557
3 0.015 3.624 1.2 E-3 4.5 E-9 0.13 1.16 E-3 4104
4 0.020 3.624 9.6 E-4 4.5 E-9 0.13 1.16 E-3 5472
Promedio 3830.25
Incertidumbre de Resultados
VARIABLE UNIDADES METODO I METODO II METODO III
Campo Eléctrico N/C 3214 4974 3830.25
Desviación Típica N/C 871 1589 1177.1
Grados de Libertad 3 3 3
Nivel de Confianza 95 % 95 % 95 %
Coeficiente de Confianza 1.83 1.83 1.83
Intervalo de Confianza N/C Ver hoja de
calculo
Ver hoja de
calculo
Ver hoja de
calculo
Error Absoluto N/C 1460 316.25
Error Relativo Porcentual % 41.55 8.99
Cálculos :
- Para el Primer Método
E = ΔV
d
E1 = 150 V = 2143 V/m
0.07 m
E2 = 200 V = 2857 V/m
0.07 m
E3 = 250 V = 3571 V/m
0.07 m
E4 = 300 V = 4286 V/m
0.07 m
Eprom = (2143 + 2857 + 3571 + 4286) V/m
4
Eprom = 3514 V/m
- Para El Segundo Método
E = 4Q
πD2
εo
E1 = 4(0.1 E-8 C) = 2842 N/C
π(0.225 m)2
x 8.85 E-12
E2 = 4(0.15 E-8 C) = 4263 N/C
π(0.225 m)2
x 8.85 E-12
E3 = 4(0.2 E-8 C) = 5684 N/C
π(0.225 m)2
x 8.85 E-12
E4 = 4(0.25 E-8 C) = 7105 N/C
π(0.225 m)2
x 8.85 E-12
Eprom = (2842 + 4263 + 5684 + 7105) N/C
4
Eprom = 4974 N/C
- Para el Tercer Método
E = ( K ) x X
2Ld q
E1 = 1.16 E – 3 x 0.008 = 2188 N/C
2(3.624 x 0.13) 4.5 E -9
E2 = 1.16 E –3 x 0.013 = 3557 N/C
2(3.624 x 0.13) 4.5 E -9
E3 = 1.16 E – 3 x 0.015 = 4104 N/C
2(3.624 x 0.13) 4.5 E -9
E4 = 1.16 E –3 x 0.020 = 5472 N/C
2(3.624 x 0.13) 4.5 E -9
Eprom = (2188 + 3557 + 4104 + 5472) N/C
4
Eprom = 3830.25 N/C
Desviación Típica
-Para el Primer Método
S = √(Σ(Ei-Eprom)2
)/n
(2143 – 3514)2
= 1879641 V2
/m2
(4257 – 3514)2
= 552049 V2
/m2
(3571 – 3514)2
= 3249 V2
/m2
(4286 – 3514)2
= 595984 V2
/m2
Σ(Ei-Eprom)2
= 3061346.9 V2
/m2
S = √3030923 / 4
S = 871 V / m
- Para el Segundo Método
S = √(Σ(Ei-Eprom)2
)/n
(2842 – 4974)2
= 4545424 V2
/m2
(4263 – 4974)2
= 505521 V2
/m2
(5684 – 4974)2
= 504100 V2
/m2
(7105 – 4974)2
= 4541161 V2
/m2
Σ(Ei-Eprom)2
= 29781033.9 V2
/m2
S = √ 10096206/ 4
S = 1589 V / m
- Para el Tercer Método
S = √(Σ(Ei-Eprom)2
)/n
(2188 – 3830.25)2
= 2696985.1 V2
/m2
(3557 – 3830.25)2
= 74665.6 V2
/m2
(4104 – 3830.25)2
= 74939.1 V2
/m2
(5472 – 3830.25)2
= 2695343.1 V2
/m2
Σ(Ei-Eprom)2
= V2
/m2
S = √ 5541932.9 / 4
S = 1177.1 V / m
Grados de Libertad
- Para los tres Métodos es:
V = n – 1
V = 4 – 1 = 3
Nivel de Confianza
- Para los tres Métodos es:
95 %
Coeficiente de Confianza
- Para los tres Métodos es:
Tc = 1.83
Intervalo de Confianza
Eprom ± tc S
√n-1
- Para el Primer Método:
3514 - 1.83*871 = 2594 V/m
√ 4 –1
3514 + 1.83*871 = 4434 V/m
√ 4 – 1
2594 < Ereal < 4434
- Para el Segundo Método:
4974 - 1.83*1589 = 3295 N/C
√ 4 –1
4974 + 1.83*1589 = 6653 N/C
√ 4 – 1
3295 < Ereal < 6653
- Para el Tercer Método:
3830.25 - 1.83*1177.1 = 2587 N/C
√ 4 –1
3830.25 + 1.83*1177.1 = 5074 N/C
√ 4 – 1
2587 < Ereal < 5074
Error Absoluto
eA1 = E1 – E2 = 3514 – 4974= 1460
eA2 = E1 – E3 = 3514 – 3830.25= 316.25
Error Relativo Porcentual
%er1 = E1 – E2 x 100 = 3514 – 4974 x 100 = 41.55 %
E1 3514
%er2 = E1 – E3 x 100 = 3514 – 3830.25 x 100 = 8.99 %
E1 3514
Demostración
J Nm
V = C = C
m m m
V = N
m C
√ 4 – 1
3295 < Ereal < 6653
- Para el Tercer Método:
3830.25 - 1.83*1177.1 = 2587 N/C
√ 4 –1
3830.25 + 1.83*1177.1 = 5074 N/C
√ 4 – 1
2587 < Ereal < 5074
Error Absoluto
eA1 = E1 – E2 = 3514 – 4974= 1460
eA2 = E1 – E3 = 3514 – 3830.25= 316.25
Error Relativo Porcentual
%er1 = E1 – E2 x 100 = 3514 – 4974 x 100 = 41.55 %
E1 3514
%er2 = E1 – E3 x 100 = 3514 – 3830.25 x 100 = 8.99 %
E1 3514
Demostración
J Nm
V = C = C
m m m
V = N
m C

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informe laboratorio Campo electrico 1

  • 1. CAMPO ELECTRICO Tabulación de Resultados Primer Método Nro ΔV(V) d(m) E1(V/m) 1 150 0.07 2143 2 200 0.07 2857 3 250 0.07 3571 4 300 0.07 4286 Promedio 3214 Segundo Método Nro Q(C) D(m) εo (C2 /Nm2 ) E2 (N/C) 1 0.1 E-8 0.225 8.85 E-12 2842 2 0.15 E-8 0.225 8.85 E-12 4263 3 0.2 E-8 0.225 8.85 E-12 5684 4 0.25 E-8 0.225 8.85 E-12 7105 Promedio 4974 Tercer Método Nro X(m) L(m) θ (rad) q(C) d(m) K(Nm) E3 (N/m) 1 0.008 3.624 5.5 E-4 4.5 E-9 0.13 1.16 E-3 2188 2 0.013 3.624 6.9 E-4 4.5 E-9 0.13 1.16 E-3 3557 3 0.015 3.624 1.2 E-3 4.5 E-9 0.13 1.16 E-3 4104 4 0.020 3.624 9.6 E-4 4.5 E-9 0.13 1.16 E-3 5472 Promedio 3830.25 Incertidumbre de Resultados VARIABLE UNIDADES METODO I METODO II METODO III Campo Eléctrico N/C 3214 4974 3830.25 Desviación Típica N/C 871 1589 1177.1 Grados de Libertad 3 3 3 Nivel de Confianza 95 % 95 % 95 % Coeficiente de Confianza 1.83 1.83 1.83 Intervalo de Confianza N/C Ver hoja de calculo Ver hoja de calculo Ver hoja de calculo Error Absoluto N/C 1460 316.25 Error Relativo Porcentual % 41.55 8.99
  • 2. Cálculos : - Para el Primer Método E = ΔV d E1 = 150 V = 2143 V/m 0.07 m E2 = 200 V = 2857 V/m 0.07 m E3 = 250 V = 3571 V/m 0.07 m E4 = 300 V = 4286 V/m 0.07 m Eprom = (2143 + 2857 + 3571 + 4286) V/m 4 Eprom = 3514 V/m - Para El Segundo Método E = 4Q πD2 εo E1 = 4(0.1 E-8 C) = 2842 N/C π(0.225 m)2 x 8.85 E-12 E2 = 4(0.15 E-8 C) = 4263 N/C π(0.225 m)2 x 8.85 E-12 E3 = 4(0.2 E-8 C) = 5684 N/C π(0.225 m)2 x 8.85 E-12 E4 = 4(0.25 E-8 C) = 7105 N/C π(0.225 m)2 x 8.85 E-12 Eprom = (2842 + 4263 + 5684 + 7105) N/C 4 Eprom = 4974 N/C
  • 3. - Para el Tercer Método E = ( K ) x X 2Ld q E1 = 1.16 E – 3 x 0.008 = 2188 N/C 2(3.624 x 0.13) 4.5 E -9 E2 = 1.16 E –3 x 0.013 = 3557 N/C 2(3.624 x 0.13) 4.5 E -9 E3 = 1.16 E – 3 x 0.015 = 4104 N/C 2(3.624 x 0.13) 4.5 E -9 E4 = 1.16 E –3 x 0.020 = 5472 N/C 2(3.624 x 0.13) 4.5 E -9 Eprom = (2188 + 3557 + 4104 + 5472) N/C 4 Eprom = 3830.25 N/C Desviación Típica -Para el Primer Método S = √(Σ(Ei-Eprom)2 )/n (2143 – 3514)2 = 1879641 V2 /m2 (4257 – 3514)2 = 552049 V2 /m2 (3571 – 3514)2 = 3249 V2 /m2 (4286 – 3514)2 = 595984 V2 /m2 Σ(Ei-Eprom)2 = 3061346.9 V2 /m2 S = √3030923 / 4 S = 871 V / m - Para el Segundo Método S = √(Σ(Ei-Eprom)2 )/n (2842 – 4974)2 = 4545424 V2 /m2 (4263 – 4974)2 = 505521 V2 /m2 (5684 – 4974)2 = 504100 V2 /m2 (7105 – 4974)2 = 4541161 V2 /m2 Σ(Ei-Eprom)2 = 29781033.9 V2 /m2 S = √ 10096206/ 4
  • 4. S = 1589 V / m - Para el Tercer Método S = √(Σ(Ei-Eprom)2 )/n (2188 – 3830.25)2 = 2696985.1 V2 /m2 (3557 – 3830.25)2 = 74665.6 V2 /m2 (4104 – 3830.25)2 = 74939.1 V2 /m2 (5472 – 3830.25)2 = 2695343.1 V2 /m2 Σ(Ei-Eprom)2 = V2 /m2 S = √ 5541932.9 / 4 S = 1177.1 V / m Grados de Libertad - Para los tres Métodos es: V = n – 1 V = 4 – 1 = 3 Nivel de Confianza - Para los tres Métodos es: 95 % Coeficiente de Confianza - Para los tres Métodos es: Tc = 1.83 Intervalo de Confianza Eprom ± tc S √n-1 - Para el Primer Método: 3514 - 1.83*871 = 2594 V/m √ 4 –1 3514 + 1.83*871 = 4434 V/m √ 4 – 1 2594 < Ereal < 4434 - Para el Segundo Método: 4974 - 1.83*1589 = 3295 N/C √ 4 –1 4974 + 1.83*1589 = 6653 N/C
  • 5. √ 4 – 1 3295 < Ereal < 6653 - Para el Tercer Método: 3830.25 - 1.83*1177.1 = 2587 N/C √ 4 –1 3830.25 + 1.83*1177.1 = 5074 N/C √ 4 – 1 2587 < Ereal < 5074 Error Absoluto eA1 = E1 – E2 = 3514 – 4974= 1460 eA2 = E1 – E3 = 3514 – 3830.25= 316.25 Error Relativo Porcentual %er1 = E1 – E2 x 100 = 3514 – 4974 x 100 = 41.55 % E1 3514 %er2 = E1 – E3 x 100 = 3514 – 3830.25 x 100 = 8.99 % E1 3514 Demostración J Nm V = C = C m m m V = N m C
  • 6. √ 4 – 1 3295 < Ereal < 6653 - Para el Tercer Método: 3830.25 - 1.83*1177.1 = 2587 N/C √ 4 –1 3830.25 + 1.83*1177.1 = 5074 N/C √ 4 – 1 2587 < Ereal < 5074 Error Absoluto eA1 = E1 – E2 = 3514 – 4974= 1460 eA2 = E1 – E3 = 3514 – 3830.25= 316.25 Error Relativo Porcentual %er1 = E1 – E2 x 100 = 3514 – 4974 x 100 = 41.55 % E1 3514 %er2 = E1 – E3 x 100 = 3514 – 3830.25 x 100 = 8.99 % E1 3514 Demostración J Nm V = C = C m m m V = N m C