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The conductor attempts to cancel the field from its interior by creating an opposing field on its surface. Imagine a metal bus-bar oriented from left to right, say 3 feet long, 1 inch thick, 3 inches wide. The 3 inches is up and down. We generate a static field up and down of 10 volts per inch. The bus-bar will charge in the up and down direction to 30 volts, reverse polarity. The internal field will be zero. We are in a conductor. As long as there is field, current will flow, until the current causes an opposing field equal to the externally caused field. If you hollow out the bus-bar the inside will be field free. This is one way to make a Faraday cage or screen room. If the external field is AC, the opposing field will be AC. Current will flow on the surface in response to the AC. This same mechanism is responsible for skin effect, wherein current flow is restricted to a thin layer at the surface. This makes the resistance of the conductor appear much higher. At 60 hertz, this costs the electric companies of the world significant energy loss. At higher frequencies, skin effect gets much worse.
What else can I help you with?
What is capable of storing electrical energy in an electrostatic field?
condenser
Why 400kVA and above the transmission line have bundled conductor?
To reduce the electric field intensity at the surface of the conductor which can lead to corona discharge and insulation breakdown. By using bundled conductors, the electric field is distributed between the four (in the case of 400-kV lines) conductors, thus reducing the field intensity per conductor.
Is there a magnetic field around current carrying conductors?
yes.magnetic field present around the conductor.current and magnetic fields are inter related..with current we can produce magnetic field and vice versa
What 3 factors that affect the output of a generator?
1:The strenght of the main magnetic Field. Determined by the strenght of the field magnets in a permanent magnet machine, or by the number of turns of wire on the field coils and the current through the coils in a wound field machine.2: The number of armature conductors connected in series, which cut the main magnetic field. Determined by the number of turns on armature coils and weather the armature is lap or wave wound, which determines the number of armature conductors connected in series.3: The speed at which the armature conductors cut the main magnetic field. The faster the armature cuts the magnetic Field, the higher will be the value of the voltage generated in the machine
Is it true that shield wires conductors located above the phase conductors protect the phase conductors against lightning?
Yes, but they're not 'phase' conductors, they're 'line' conductors.
What is the magnetic behavior of super conductors?
a high magnetic field
Which one of the following statements best explains why it is possible to define an electrostatic potential in a region of space that contains an electrostatic field?
It is possible to define an electrostatic potential in a region of space with an electrostatic field because the potential is a scalar field that describes the energy per unit charge at a point in space due to the presence of a source charge distribution. This potential provides a convenient way to describe the behavior of the electric field in that region.
What are some common challenges encountered when dealing with electrostatic field problems?
Some common challenges when dealing with electrostatic field problems include accurately modeling complex geometries, understanding the behavior of materials in the field, and accounting for boundary conditions and interactions with other fields.
What is capable of storing electrical energy in an electrostatic field?
condenser
What determines the direction of polarization of a radiated electromagnetic field?
The polarization of an electromagnetic field is defined as the direction of its E field (electrostatic).
Why it is possible to define an electrostatic potential in a region of space that contains an electrostatic field?
The electrostatic potential is a scalar quantity that represents the potential energy of a unit positive charge at a specific point in the electric field. It is defined as the work done in moving a unit positive charge from infinity to that point. This potential does not depend on the path taken and can be defined at any point in a region of space regardless of the presence of an electric field.
How will you shield a sensitive instrument from a strong electrostatic field?
One way to shield a sensitive instrument from a strong electrostatic field is to use a grounded conductive enclosure around the instrument. This enclosure can help dissipate the electrostatic field away from the instrument and prevent interference. Additionally, using shielding materials that have high conductivity, such as copper or aluminum, can further enhance the protection against electrostatic fields.
What do you use in a vacuum to bend electronic beams?
Either an electrostatic field or a magnetic field. Each type is used in cathode ray tubes: generally, electrostatic in oscilloscopes, magnetic in television and computer CRTs.
Can electricity be produced from a stationary magnetic field?
Yes, by moving the conductors through the magnetic field.
What is formed when an electric current passes through a unbroken path of conductors?
When an electric current passes through an unbroken path of conductors, it creates a magnetic field around the conductors. The strength of the magnetic field is directly proportional to the magnitude of the current flowing through the conductors. This phenomenon is described by Ampere's law in electromagnetism.
Is water defected by a non uniform electrostatic field?
Yes, water can be deflected by a non-uniform electrostatic field. Water molecules are polar, meaning they have a positive charge on one end and a negative charge on the other. When a non-uniform electrostatic field is applied, the positive and negative ends of the water molecules will experience different forces, causing the water to be deflected.
Under electrostatic conditions, why is there no electric field inside a solid conductor?
Under electrostatic conditions, there is no electric field inside a solid conductor because the free electrons in the conductor redistribute themselves to cancel out any external electric field, resulting in a net electric field of zero inside the conductor.
