ex parcial 20  2

ex parcial 20 2

University

30 Qs

quiz-placeholder

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ex parcial 20  2

ex parcial 20 2

Assessment

Quiz

Physics, Mathematics, Science

University

Practice Problem

Medium

Created by

Joaquin Salcedo

Used 12+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Si calculo la fuerza de una corona cargada en un punto de su eje... puedo extrapolar para un disco

SI

NO

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 σ2ϵ0(1   xb2 +x2)\frac{\sigma}{2\epsilon_0}\left(1\ \ -\ \frac{x}{\sqrt{b^2\ +x^2}}\right)  es el CE de un disco  entonces el CE de un plano infinito es ...

 σ2bϵ0\frac{\sigma}{2b\epsilon_0}  

 σ2ϵ0\frac{\sigma}{2\epsilon_0} 

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 El CE entre dos planos infinitos paralelos es σϵ0\frac{\sigma}{\epsilon_0}  

false

true

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Las cargas eléctricas se pueden aniquilar pero la carga eléctrica se conserva

TRUE

FALSE

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

En el gráfico la linea roja (potencial de una carga) corresponde a ...

1r\frac{1}{r}

1r2\frac{1}{r^2}

1x\frac{1}{x}

n.a.

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

La funcion potencial de un sistema de n cargas es...

V=k1nqiriV=k\sum_1^n\frac{q_i}{r_i}

V=k1nqiri2V=k\sum_1^n\frac{q_i}{r_i^2}

V=q1nkiriV=q\sum_1^n\frac{k_i}{r_i}

V=kqiriV=k\int\frac{q_i}{r_i}

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Qué se puede decir de la esfera?

Es un dieléctrico

Es un conductor

Es un dieléctrico uniforme

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