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What else can I help you with?
What is the difference between protective earth and a ground?
Earth ground, in many cases - is used as a reference. The potential of a conductor who is directly connected to Earth Ground has a very low, consistant potential. It is used to help "define the electrical potential of conductors RELATIVE to the Earth's potential." A protective earth or P.E., is used to provide a path for current flow to prevent an end user from becoming exposed to a live component or conductor, mostly due to failing insulators (IE a short circuit melting a piece of insulation, exposing a live conductive wire that is in contact with the enclosure of a product - in which the user may be in contact with). The entire purpose of the PE is to provide a barrier between the end user and the live conductors to prevent shock hazard. The purpose of earth ground, is to provide a constant reference potential for other conductors.
Why you take point at infinity in describing electric potential?
The point at infinity is often used in discussing electric potential as a reference point to define the zero level of potential energy. This helps in calculating the potential difference between different points in the electric field. By setting the potential at infinity to zero, it allows for a consistent and convenient way to describe electric potential.
What is the definition to the word mass in science terms?
Many scientists literally define mass as "how much stuff is there." Mass is different than weight. Weight depends on gravitational pull. However, mass (which is measured by a balance), is the same no matter what the gravitational force.
What does the word ground mean in science?
In science, "ground" generally refers to a reference point used in electrical circuits to define 0 volts and complete a circuit for electricity to flow. It can also refer to the Earth's surface or the solid part of the planet's surface where organisms live.
What is The part of a magnet that points north is called?
The pole of the magnet that points to earth's magnetic north is the south pole of the magnetIt should be understood that the north pointing end of a compass is a North magnetic pole. That being so, the north pole of the earth got its name because of this fact. Actually, the north pole of the earth has a South magnetic polarity which attracts the north pole of the compass. The south pole of a magnet points to the south pole of the earth because the south pole has a north magnetic polarity. Confused? Just remember that true (magnetic) north resides in the magnet; not in the earth. dbm 7/16/09Clearer AnswerThe above answer is incorrect. The poles of a magnet were named after the directions in which they point. The earth's poles were NOT named after a magnet's poles!When a horizontally-suspended comes to rest, it points in an approximately North-South direction. For this reason, the end of the magnet pointing North was called the 'North-Seeking' pole, and the other end was called its 'South-Seeking' pole. We no longer use the terms 'seeking', and we now call the ends of a magnet its 'north pole' and 'south pole' and these terms are also used to define their magnetic polarities.To differentiate it from True North and True South, we say that the magnet actually points to Magnetic North and Magnetic South -these are the names given to directions (or location) NOT their magnetic polarities. So, because 'unlike poles attract', the magnetic polarity at the location we call 'Magnetic North' is a south pole which therefore attracts the north pole of a magnet.
How can you tell that a high diver has gravitational potential energy?
If an object is above ground level, it has positive gravitational potential energy. (This assumes you define ground level to be zero - actually, you can define any level to be zero.)
Define elastic potential energy and gravitional potential energy?
Gravitational potential energy, is the energy an object possesses by reason of its position in a gravitational field. While elastic potential energy, is the energy stored by a material or object as a result of deformation e.g. the energy stored in a bow when it is stretched.
What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?
The magnetic loading and electrical loading is most important parameter in the electrical machine. the electrical machine's torque is define as T=winding factor*electrical loading*magnetic loading*rotor volume You can see that the magnetic loading can decide electrical machines volume so this parameter is important.
Define gravitational potential energy?
Gravitational potential energy is the energy an object possesses due to its position in a gravitational field. It is the energy stored in an object as a result of its height above the Earth's surface or any other reference point. This energy can be released and converted into kinetic energy when the object falls or moves to a lower position.
Can the gravitational potential energy of an object ever have a negative value?
it is conventional to define gravitational potential energy (GPE) of object A to be 0 when the object is free from the gravitational field of object B (i.e. at a infinite distance away) As the objects get closer together, the GPE decreases, thus is less than 0. Therefore the GPE of any object normally has a negative value (however it all just depends on where you define to be the point at which the object has 0 GPE)
Characteristics of gravitational potential energy?
It isn't clear to me what you mean with "indicators" - an object has positive gravitational potential energy if it has mass, and if it is above ground level (or above any other reference level you choose to define as level zero).
Define Mechanical Electrical and Plumbing Engineer?
Mechanical and Electrical
Is gravitational energy an example of kinetic energy or potential energy?
Gravitational energy is partly potential energy, -mGM/r and partly vector energy cmV. The vector energy is not recognized because physicists define energy as a scalar, not a vector. The Universe defines energy as a Quaternion the sum of a scalar and a vector.Kinetic energy is scalar energy subset of potential energy.The gravitational energy is a Quaternion:W = -mGm/r + cmV = -vh/r + cP =-vp + cP = -mv2 + cPThe Law of Gravity creates a velocity field V that imposes itself on the mass m. The potential energy is -vp = -mv2 and the vector energy cP= cmV.The gravitational field cause both the potential energy and the vector energy. What Newton and physicists have done is to miss the fact that the mass m is moving with velocity and thus has vector momentum , vector energy.
Can gravitational potential energy be negative?
In potential energy, the important thing is the increase or decrease in energy; any absolute energy level is arbitrary. So, it all depends on what level is arbitrarily defined as zero. For example, if you define the floor level as zero, then anything above that will be positive, anything below that will be negative.
What define as the energy of motion?
potential
Define voltage in terms of electric potential energy and charge?
When unlike charges are moved farther apart, they gain electrical potential energy. Electrical potential difference is the change in potential energy per coulomb of charge. Voltage is the common name for electrical potential difference and is measured in volts (V). Electrical energy depends on the amount of charge and voltage. Electrochemical cells, or batteries, are a common source of voltage. We use voltmeters to measure potential difference. :)
Can you define GPE and explain its significance in the field of physics?
Gravitational potential energy (GPE) is the energy stored in an object due to its position in a gravitational field. In physics, GPE is important because it helps us understand how energy is transferred and transformed in systems involving gravity, such as when objects are lifted or dropped. It plays a key role in concepts like work, potential energy, and conservation of energy.
