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Why it is not correct to say that potential difference is the work done in moving unit charge between the point concerned?
Voltage is defined as potential difference (units of volts).
Work is equivalent to power (over time), and its' unit is joules. Power is equivalent to the potential difference times the current flow. Without current flow, there is no power, so it is incorrect to define potential difference as work.
What I think you're implying is potential energy and potential difference are the same:
Potential energy of a rock can be increased by raising the rock into the air. The increase of potential energy of the rock is equivalent to the real work done to raise it higher into the air. This is a true statement.
Potential energy (joules) and potential difference (volts) are not equivalent, though, since potential differenence is not defined as work.
What else can I help you with?
What is the difference between 1000kgs and 1000kg.which one is correct?
1000 kg is correct, no need to make it plural
What is the difference between ploughing and plowing?
Ploughing is the correct spelling, plowing is the US spelling.
What is the difference between error and problem?
Error-whenwe are doing something wrong......this is errer.....and How to correct it......is our problem.
What is 'electrical potential' - 'energy difference' or 'voltage'?
Electrical potential deals with moving a charge in a direction opposite to an electric field. So what we are actually dealing with is Potential Energy. This can be calculated by the equation of PE = QEd where Q is the charge of the particle, E is the electric field and d is the distance the charged particle has been moved. The units of all this ends up being Joules (J). Now, electric potential difference is another story. This is the work per unit charge. In this case the unit will be V (volts).
How many kinds of electric charge are there?
There are two. Positive + and Negative - Positive is carried by the proton and negative is carried by the electron. What is usually talked about when people talk about charge is electrical potential. At zero potential there are equal number of electrons and protons. But in the real world that seldom happens so electrical potential is correct the potential difference between the state of two objects. In other words which one has the most or least electrons compared to its number of protons. Since this is hard to count we are lucky that the excess one of the other creates an electrical field and we can measure the strength of the field as a measure of the charge. The most common device to do this is a voltmeter which measures the electrical potential difference between to conductors such as the ends of a battery. There are other devices to measure the magnitude of static electrical fields.
Why it is not correct to say that the potential difference is the work done in moving charge between the points concerned?
Voltage is defined as potential difference (units of volts). Work is equivalent to power (over time), and its' unit is joules. Power is equivalent to the potential difference times the current flow. Without current flow, there is no power, so it is incorrect to define potential difference as work. What I think you're implying is potential energy and potential difference are the same: Potential energy of a rock can be increased by raising the rock into the air. The increase of potential energy of the rock is equivalent to the real work done to raise it higher into the air. This is a true statement. Potential energy (joules) and potential difference (volts) are not equivalent, though, since potential differenence is not defined as work.
What is the difference between jewelry and jewellery?
The difference between jewelry and jewellery is correct versus incorrect spelling. "Jewelry" is the correct spelling.
As approved or approved which is correct?
which is correct difference between as approved or approved
What is the difference in potential between two charges called?
Voltage.The correct term for the amount of energy per unit of charge is potential difference.Energy = Charge * VoltageSimple rearranging gives: Voltage = Energy / ChargeTherefore a volt can be defined as a "joule per coulomb".
What is the difference between perfect elasticity?
That's not correct English.
What is the difference between you had eaten and you have eaten?
HAVE eaten is correct where as HAD eaten is not.
What is the difference between a rhombuses and a rectangle?
A rectangle is correct; a rhombuses is not.
What is the difference between can not and cannot?
Cannot is correct. Can not is incorrect.
What is the difference between be accustomed to and be accustomed with?
The difference is that "accustomed to" is a correct usage while "accustomed with" is incorrect.
What is the difference between 1000kgs and 1000kg.which one is correct?
1000 kg is correct, no need to make it plural
What is the difference between inadvisable and unadvisable?
Nothing. Both spellings are correct.
Is potential difference can be positive negative or zero?
That is correct. Since potential difference is a difference, Vb - Va ,then you can have all three possibilities. The potential at a point, say Va, is itself a difference. It is the potential difference between point "a" and a second point "0" where the potential is choosen to be zero. This zero point is completely arbitrary , provided it does not lead to mathematical difficulties. Sometimes it is convienient to choose a zero location for potential and sometimes its not necessary. For example; suppose the potential difference between charged parallel plates a & b is Vb - Va = 10 volts. This would require that Vb > Va , but the actual values of Vb & Va need not be known. Then Va - Vb = - 10 volts. If one wants to choose point "a" as the zero point, then Vb = 10 v. Or if one wants to choose Vb as the zero point then Va = - 10 v. Or if one wants to choose midway between the plates as the zero point then Vb = 5v & Va = - 5v.
