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An isolated conducting sphere whose radius R equals 1M has a charge 1.1nc the energy density at the surface of sphere?
The energy density at the surface of a charged conductor is the surface charge density squared , divided by 2 x the permittivity of free space. The surface charge density is the charge divided by the area it sits on. So if, e = permittivity = 8.85 x 10^-12 CC/Nmm and D = surface charge density, and U = energy density and R = radius of sphere and q = charge on sphere, then; U = (1/2e) x D^2 where D = q/4piR^2 = 1.1 x 10^-9/(4 x 3.14 x 1) = 8.76 x 10^-11 , where 4piR^2 is the surface area of a sphere. So; D^2 = 76.7 x 10^-22 then ; U = (76.7 x 10^-22)/(17.7 x 10^-12) = 4.33 x 10^-10 Joules/mmm
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What is an even charge distribution?
An even charge distribution refers to a situation where electric charge is uniformly distributed over a surface or a volume, resulting in a symmetrical electric field. This balanced distribution leads to no preferential direction for the electric field lines and results in a more stable and predictable electrical system.
A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the?
sodium-potassium pump. This pump moves sodium ions out of the cell and potassium ions into the cell, creating a positive charge on the outer surface of the membrane. This helps maintain the neuron's resting membrane potential and is essential for proper nerve cell function.
Will a sharp metal point with a small radius curvature store a large or small amount of charge?
There are two limits to how much charge a perfect conductor can store. One is determine by its area and has nothing to do with sharpness or radius of curvature. Thus, a larger area can store more charge than a smaller area. However, the other limit on the maximum stored charge is when the potential reaches the breakdown voltage and then an arc occurs. This breakdown voltage is easier to achieve when the object is sharp and thus ultimately it will indeed store less charge.
What is the charge of a nuetron?
A neutron has a charge of zero. It is a neutral particle, meaning it has no electrical charge.
Why is a negative charge dye used to stain bacteria?
A negative charge dye is used to stain bacteria because most bacteria have a negatively charged cell wall. This dye is attracted to the negatively charged surface of the bacteria, allowing for better penetration and visualization under a microscope.
What is the linear charge density on the inner surface of the conducting shell?
The linear charge density on the inner surface of the conducting shell is the amount of charge per unit length along that surface.
What is the relationship between surface current density and the flow of electric charge in a conducting material?
Surface current density refers to the flow of electric charge per unit area on the surface of a conducting material. It is directly related to the flow of electric charge within the material, as the surface current density is a result of the movement of charge carriers within the material. In other words, the higher the surface current density, the greater the flow of electric charge within the conducting material.
The relative distribution of charge density on the surface of a conducting solid depends on what?
The relative distribution of charge density on the surface of a conducting solid depends on the shape and geometry of the solid, as well as the presence of any nearby charges or electric fields. Additionally, the material properties of the solid, such as its conductivity and dielectric constant, can also influence the charge distribution.
What is the relationship between surface charge density and volume charge density in a given system?
Surface charge density and volume charge density are related in a given system by the equation: surface charge density volume charge density thickness of the system. This means that the amount of charge distributed on the surface of an object is directly proportional to the volume charge density within the object and the thickness of the object.
What is the geometrical shape of equipotential surface due to single isolated charge?
what is the geometrical shape of equipotential surface due to single isolated charge
What is the surface charge density formula of a sphere?
The surface charge density formula of a sphere is Q / 4r, where is the surface charge density, Q is the total charge on the sphere, and r is the radius of the sphere.
What is the surface charge density on the disks?
The surface charge density on the disks is the amount of electric charge per unit area on the surface of the disks.
What quality must the charge density on the surface of a conducting wire possess if an electric field is to act on the negatively charged electrons inside the wire?
The charge density on the surface of a conducting wire must be nonuniform, with a tangential component to the surface, in order for an electric field to act on the negatively charged electrons inside the wire. This nonuniform charge distribution creates an electric field inside the wire, allowing for the movement of the electrons.
What is the formula for calculating the surface charge density of a sphere?
The formula for calculating the surface charge density of a sphere is: Q / 4r, where represents the surface charge density, Q is the total charge on the sphere, and r is the radius of the sphere.
What will the surface charge density be if the radius of the disk is doubledA circular disk has surface charge density 30 nCcm2.?
The surface charge density will remain constant at 30 nC/cm^2 even if the radius of the disk is doubled. Surface charge density is independent of the size of the object and depends only on the distribution of charge over its surface area.
How can one determine the surface charge density of an object?
To determine the surface charge density of an object, you can divide the total charge on the object by its surface area. This will give you the amount of charge per unit area on the object's surface.
Where is the electric field in conducting and non-conducting sheets?
In a conducting sheet, the electric field is zero inside the material but can exist on the surface due to excess charge redistribution. In a non-conducting sheet, the electric field can exist both inside the material and on the surface, depending on the charge distribution.
