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What is meant by charged metallic plate?
A charged metallic plate is a thin rectangular (or square) sheet that carries a surface charge. Because metal is a conductor, you can assume that the surface charge is spread uniformly over the area of the plate.
Will an electric charge spread over and entire balloon?
Yes, an electric charge can spread over the entire surface of a balloon. When a balloon is charged, the charge will distribute itself evenly across the surface due to electrostatic forces.
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.
What is the advantage of using a stranded copper conductor over a solid copper conductor?
It would of course depend on the specific application. Current tends to travel on the surface of a conductor and a stranded conductor has more surface area and thus offers less resistance to the current. Stranded wire also bends a bit easier than the corresponding size solid wire.
What is Skin effect in transmission lines?
when a conductor is carrying a steady DC current,it is uniformly distributed over the whole cross section of the conductor. however, an alternating current flowing through the conductor does not distribute uniformly . Rather it has a tendency to concentrate near the surface of the conductor. This is known as skin effect
What does it mean when the net charge is conserved in a closed system?
When the net charge is conserved in a closed system, it means that the total charge within the system remains constant over time. This implies that no charge is lost or gained within the system as a whole, but it can be redistributed among the particles present.
Why only one end of metal rod cannot be charged?
Metal is a good conductor. Any charge will quickly be distributed over the entire metal piece.
Why do you get charged when you shuffle over a carpet?
When you shuffle over a carpet, friction between your shoes and the carpet causes the transfer of electrons. This transfer builds up an excess of negative charge on your body, leading to a static charge. When you touch a conductor or another person, the excess charge discharges, resulting in a spark and a mild electric shock.
What happens to the charge on the conductive sphere when it is connected to a source of charge?
When a conductive sphere is connected to a source of charge, the charge will distribute itself evenly across the surface of the sphere. This is because charges repel each other and will spread out to achieve maximum separation. The overall charge on the sphere can change depending on the charge from the source and the existing charge on the sphere.
What is the Difference between line charge density and surface charge density?
The electric field of an infinite line charge with a uniform linear charge density can be obtained by a using Gauss' law. Considering a Gaussian surface in the form of a cylinder at radius r, the electric field has the same magnitude at every point of the cylinder and is directed outward. The electric flux is then just the electric field times the area of the cylinder.
Whichof these is the best definition for electrical current?
Electrical current is the flow of electric charge in a circuit, typically carried by electrons through a conductor. It is measured in amperes (A) and indicates the rate at which electric charge passes through a given point in a circuit over time.
What are good viral marketing examples?
The VERY best example would be the Super Bowl commercials. They were massively redistributed by fans over the Internet far after the game.
