0
What is the minimum electric potential difference required for electrorefining of pure copper?
Wiki User
∙ 10y ago
0,2V
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
How is electricity produced in a wet cell?
The gravitational and electrical pootential are quite similar . Like a difference in the gravitaional potential causes the movement of the mass to a lower potential point simmilarly in an electric field a charged particle also has an electric potential or electric potential field simmilar to a mass has in a gravitational field . Suppose a negatively cahrged object and a positive test charge is placed near it then as we all know that the positive test charge will be attracted towards the negatively charged object . Now if we want to move tha +ve test charge away from the negatively charged object them we will have to spend some energy and that energy will get converted into the electric potential energy . This means that we did do some work in in moving that +ve test charge away from the -ve sphere and spent energy in doing so . Thus its electric potential enrgy increased . Thus there is some electric potential difference between the the two points - the initial pont and the second point . This potential difference will cause the test charge to move to the initial point and the electric potential energy will get converted into kinetic energy or useful work . Thus now we know that a potential difference is required to move the charge . If a charged body is connected to an uncharged body by a conductor then charge will flow from the charged to the uncharged body . This means the charge will flow from the high potential(charged body) to the low potential (uncharged body). A dry cell provides current and to do so it maintains a potenial difference . By the chemmical reactions taking place in the dry cell the charges are maintained on the respective electrodes and hence a potential differnce is maintained which causes the elctrons to flow when the cell is connected to a load . I normal AA cell has a standard potential difference of 1.5 volts which means 1.5 joules of energy is carried by every 1 coulombs of the charge and this energy is used in the load to produce power . Gradually the chemicals get used up and the cell gets discharged .
What are the four essential elements required for x-ray production?
a target, a vacuum, an electron source and a high potential difference
What is ionization potentials?
Ionization potential is the energy required to remove one electron from an atom in the gaseous state. The units may be eV(electron volts) or kJ/mol. These are readily interconverted. Usually the ionization potentials for successive electrons are quoted as the first ionization potential, second ionization potential etc.
What is the differences between amps and volts?
An 'amp' is a slang expression for 'ampere', whose correct symbol is 'A'. An ampere is the SI base unit for electric current, and is defined in terms of the force between parallel, current-carrying, conductors due to the magnetic fields that surround them. WebRepcurrentVotenoRatingnoWeightA 'volt' (symbol: 'V') is the SI derived unit for potential difference (voltage), and is defined in terms of the energy required to separate electric charge.Potential difference, or voltage, can be thought of as the 'electrical pressure' responsible for causing current to pass through a conductor.
Membrane potential required to achieve threshold?
-55mV
In an electric field 0.90 J of work is required to bring 0.45 C of charge from point A to point B. What is the electric potential difference between points A and B?
nn
What is the role of a dry cell in a torch?
To provide the electric potential difference required to get a current flowing through the bulb and the torch to produce light.
Is electric current and current the same thing?
Not really. You can compare them with the analogy of water flowing through a pipe. For water to flow, there must be a pressure difference across the ends of the pipe. An electric current is a movement of electric charges along a conductor. For those charges to move, there must be a voltage (more accurately, a 'potential difference') across the ends of the conductor. So a potential difference is required to cause current to flow.
How is a voltmeter connected in the circuit to measure the potential difference between two points?
The voltmeter is connected in parallel between the two points whose potential difference is required.
How do electrons flow in an electric in terms of potential difference?
Electrons naturally tend to flow from a point that has a more negative potential, to one that is more positive. Inside the battery, of course, it is the other way round; they flow from positive to negative - the battery provides the required energy. In this case, the battery can be considered an electron pump.
One volt is equal to?
One volt is the electric potential required to generate one ampere through one ohm. One volt is the electric potential involved when one ampere generates one watt of power. One volt is one joule per coulomb.
How is electricity produced in a wet cell?
The gravitational and electrical pootential are quite similar . Like a difference in the gravitaional potential causes the movement of the mass to a lower potential point simmilarly in an electric field a charged particle also has an electric potential or electric potential field simmilar to a mass has in a gravitational field . Suppose a negatively cahrged object and a positive test charge is placed near it then as we all know that the positive test charge will be attracted towards the negatively charged object . Now if we want to move tha +ve test charge away from the negatively charged object them we will have to spend some energy and that energy will get converted into the electric potential energy . This means that we did do some work in in moving that +ve test charge away from the -ve sphere and spent energy in doing so . Thus its electric potential enrgy increased . Thus there is some electric potential difference between the the two points - the initial pont and the second point . This potential difference will cause the test charge to move to the initial point and the electric potential energy will get converted into kinetic energy or useful work . Thus now we know that a potential difference is required to move the charge . If a charged body is connected to an uncharged body by a conductor then charge will flow from the charged to the uncharged body . This means the charge will flow from the high potential(charged body) to the low potential (uncharged body). A dry cell provides current and to do so it maintains a potenial difference . By the chemmical reactions taking place in the dry cell the charges are maintained on the respective electrodes and hence a potential differnce is maintained which causes the elctrons to flow when the cell is connected to a load . I normal AA cell has a standard potential difference of 1.5 volts which means 1.5 joules of energy is carried by every 1 coulombs of the charge and this energy is used in the load to produce power . Gradually the chemicals get used up and the cell gets discharged .
What are the four essential elements required for x-ray production?
a target, a vacuum, an electron source and a high potential difference
How does potential energy affect force?
It's really the other way round - force affects potential energy. Potential energy is the RESULT (not the cause) of a force being required to move something - for instance, against the force of gravity or an electric field.
What is the relation between energy and charge?
The relationship between energy and charge is potential difference or voltage. Where a volt is defined as existing between two points in an electric field when one joule of energy is required to move a charge of one coulomb between the two points.
What does an electric circuit provide for the flow of electric current?
It doesn't necessarily have a 'function'; it is simply the natural consequence of applying a potential difference across a conductor. However, this is usually done for a reason, and its function is then derived from one or other of the three effects of that current:heating effect -e.g. electric heatersmagnetic effect -e.g. electric motorschemical effect -e.g. electrolysis (electroplating)
How much electrical energy is required to move 4.00 mC of charge through a potential difference of 36.0 V?
0.144 JOULES. One can calculate this from the formula E=Vq in which E is energy, V is potential difference & q is charge.
