is their any difference btw voltage n potential difference????
Answers
Electrical potential is the energy per unit charge gained or lost when a charge is moved from some reference point at which the potential is defined to be zero.
Voltage is the difference in potential between two arbitrary points at which the potential is not necessarily zero.
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Answer:
Yes. There is a difference between the both. Here are some...
Explanation:
EMF It is the work done by a source in taking a unit charge once round the complete circuit.
PD It is the work done in taking a unit charge from one point of the circuit to another.
EMF It is related with the source of current.
PD It is related with any 2 points of a closed circuit.
EMF It is a cause of the PD between any 2 points in the circuit i.e., when emf is applied in a circuit, pd is caused. It maintains PD.
PD It is an effect (of emf). It causes current to flow.
EMF It is the maximum PD between the 2 terminals of the source when the source is in an open circuit.
PD May exist between any 2 points of a closed circuit.
EMF Exists even when the circuit is open.
PD Exists only when the circuit is closed.
EMF It is larger than the PD across any circuit element.
PD It is always less than the EMF.
EMF = Sum of the PD across all the components of a circuit including the PD of the cell.
PD In a closed circuit, different circuit elements will have different PD.
EMF Has a non - electrostatic origin.
PD It originates from the electrostatic field set up by the charges accumulated on the 2 terminals of the source.
EMF Independent of the external resistance and the current drawn from the source.
PD Depends on the resistance between the given 2 points in a circuit and the current flowing through these 2 points.
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