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Voltage at a point is defined as the work done by a unit positive charge carrying it from infinity to that point. while volage diffrance between two points is the work done bye unit positive charge from one point to the other point.
work may be positive or negative depend upon the nature of charge that's why the potential will be negative or positive .
CommentBy definition, voltage means potential difference. For this reason, you cannot have 'a voltage at a point' because potential difference, or voltage, exists between two points. You can, however, have a potential at a point.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThere is no such thing as a 'voltage difference'. Voltageis another term for potential difference, so 'voltage difference' would mean 'potential difference difference', which doesn't make sense!
So, there is 'potential', and there is 'potential difference' (i.e. 'voltage'), but there is no 'voltage difference'! Both potential and potential difference are measured in volts.
Incidentally, strictly speaking, 'voltage' is rather like 'amperage' -both are loose, but widely-used, expressions for 'potential difference' and 'current'.
Wiki User
∙ 10y ago'Voltage' is simply another term for 'potential difference'. It is NOT the same as 'potential', however.
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What is the Difference between supply voltage and input voltage?
no difference...
What does not provide a voltage difference in a circuit?
Wires do not provide a voltage differenceAnswerAs 'voltage' is synonymous with 'potential difference', you appear to be asking "What does not provide a potential difference difference in a circuit?", which does not make any sense!
Are potential difference and voltage always the same?
Voltage is simply another word for potential difference.
What is the difference between voltage forward voltage and voltage drop?
Voltage is the potential difference between the source & any point in the circuit. The forward voltage is the voltage drop across the diode if the voltage at the anode is more positive than the voltage at the cathode (if you connect + to the anode). Voltage drop means, amount of voltage by which voltage across load resistor is less then the source voltage.
What is the importance of voltage?
importance of voltage is the potential difference between two points.
What is the Difference between supply voltage and input voltage?
no difference...
What is a common source for a voltage difference?
Batteries provide a voltage difference.
What does not provide a voltage difference in a circuit?
Wires do not provide a voltage differenceAnswerAs 'voltage' is synonymous with 'potential difference', you appear to be asking "What does not provide a potential difference difference in a circuit?", which does not make any sense!
What does not provide a voltage a difference in a circuit?
Wires do not provide a voltage differenceAnswerAs 'voltage' is synonymous with 'potential difference', you appear to be asking "What does not provide a potential difference difference in a circuit?", which does not make any sense!
What is the purpose of voltage difference?
'Voltage' is simply another word for 'potential difference' so, clearly, there is no such thing as a 'voltage difference' because it would mean 'potential difference difference' which doesn't make any sense! So, if your question really means, 'What is the purpose of a voltage?', then the answer is that a voltage is necessary to drive current through a circuit.
What is the difference between a voltage converter and a voltage regulator?
the difference between a voltage converter to a voltage regulator,is that a voltage converter,converts or changing the desired voltage to be used while the voltage regulator,regulates the input of the voltage amount not to excess to its inputs.
Another term for potential difference is?
voltage
Another name for potential difference?
Voltage Voltage
Are potential difference and voltage always the same?
Voltage is simply another word for potential difference.
How can you get the largest voltage difference?
There is no such thing as a 'voltage difference'! 'Voltage' means 'potential difference', so what you appear to be asking is "How do you get the largest potential difference difference?'! Potential difference is caused by the separation of charges between two points. The greater the amount of charge separation, the greater the potential difference.
What is the same word as voltage?
Voltage is synonymous with potential difference.
What is a common source for a voltage?
Batteries provide a voltage difference.
