What are the three rules to remember about an electric field and a conductor?
What are the three rules to remember about an electric field and a conductor?
The earth (a conductor) has a net electric charge. The resulting electric field near the surface has an average value of about 150N/C, directed toward the center of earth. A- What is the corresponding charge density? B- What is the total surface charge of the earth. (ε0=8,85x10-12 MKS)
Which of the following statement is correct about the electric field on the surface of a charged conductor in electrostatic equilibrium? Group of answer choices It is parallel to the surface so that charge can move along the surface. It is perpendicular to the surface so that charge in the conductor cannot move along the surface by the electric field It is perpendicular to the surface because there are charges inside the conductor. It is perpendicular to the surface because...
A stationary magnetic field can create an electric current in a stationary conductor.
7. The electric field is zero: a. inside any conductor. inside any conductor with a static charge. inside any material, conductor or insulator, with a static charge. d. Never e. Always. I there is a force of 5.0 x 1012 N acting to the left on an electron, the electric field intensity at the location of this electron will be: a. zero. b. 8.0 x 103 N/C to the left c. 3.1 x 10" N/C to the left 3.1 x...
Which of the following statements about electric field lines are true? (choose all that are true) a) They are only defined for positive charges. b) They are always tangent to electric field vectors. c) They are always perpendicular to charged surfaces. d) They are a simple way to visualize the electric field vectors. e) None of the above. If a negative charge is placed in an electric field, what direction will it be accelerated? a) In the direction of the...
What is the electric potential inside a conductor: Zero everywhere The same everywhere Varies, depending on the shape of the conductor Varies, depending on the amount of charge on the conductor Are electric field lines more or less dense near a collection of charge? Explain.
3) Using Gauss' Law, prove that the electric field inside a conductor is zero. (Hint: no actual equations are necessary)
The electric field must be zero inside a conductor in electrostatic equilibrium, but not inside an insulator. It turns out that we can still apply Gauss's law to a Gaussian surface that is entirely within an insulator by replacing the right-hand side of Gauss's law, Qin/ε0, with Qin/ε, where ε is the permittivity of the material. (Technically, ε0 is called the vacuum permittivity.) Suppose that a 75 nC point charge is surrounded by a thin, 32-cm-diameter spherical rubber shell and...
2. Potentials and a Conducting Surface The electric potential outside of a solid spherical conductor of radius R is found to be V(r, 9) = -E, cose (--) where E, is a constant and r and 0 are the spherical radial and polar angle coordinates, respectively. This electric potential is due to the charges on the conductor and charges outside of the conductor 1. Find an expression for the electric field inside the spherical conductor. 2. Find an expression for...
The electric field must be zero inside a conductor in electrostatic equilibrium, but not inside an insulator. It turns out that we can still apply Gauss's law to a Gaussian surface that is entirely within an insulator by replacing the right-hand side of Gauss's law, Qin / Eo, with Qin /ɛ, where ε is the permittivity of the material. (Technically, so is called the vacuum permittivity.) Suppose that a 75 nC point charge is surrounded by a thin, 32-cm-diameter spherical...