What is meant by saying that the potential difference between two points is one volt

Term Meaning Battery Device that transforms chemical energy into electrical energy. An ideal battery has no internal resistance. Electric potential difference ( Δ V \Delta V Δ V delta, V ) Energy change per unit charge between two points. Also called voltage or electric potential. Has SI units of Volts V = J C \text V = \dfrac V = C J ​ start text, V, end text, equals, start fraction, start text, J, end text, divided by, start text, C, end text, end fraction . Electromotive force (EMF, ϵ \epsilon ϵ \epsilon ) EMF is the potential difference produced by a source such as an ideal battery. Has SI units of V \text V V start text, V, end text . Equation Symbols Meaning in words I = Δ V R I=\dfrac I = R Δ V ​ I, equals, start fraction, delta, V, divided by, R, end fraction I I I I is current, Δ V \Delta V Δ V delta, V is electric potential difference, and R R R R is resistance Current is directly proportional to electric potential difference and inversely proportional to resistance. Current flow and electric potential difference can be better understood by using the analogy of a boulder rolling down a hill. At the top of the hill, the boulder has a lot of gravitational potential energy. Similarly, an electron has a lot of stored energy in the form of electric potential energy when it is at the negative terminal of a battery. The boulder will naturally fall toward the ground where potential energy is lower. The electron at the negative terminal of a battery will naturally flow to...

Potential difference • The potential difference among both two places along a circuit is the difference in the quantity of energy that starts charging bearers have. • Whenever work is done on a charge sufficient alters its potential energy, the electric potential difference is the difference throughout electric potential (V) seen between the final and beginning position. • Potential difference (P) is measured in Volts ( V ), and energy (E) is measured in Joule ( J ). • Now, if 1 J of effort is necessary to transport a charge of 1 C from one place to another, this same potential difference across the two points equivalent to 1 V.

Voltage is always related to two points, because it means a difference in electric potential, between two points. If we want to express the voltage between A and B, we could say: The potential at A is 3 V higher than the potential at B. And there is no place to doubt. The problem is, if we want to write it using less text, as follows: $$V_$ shorthand is, and if it's standard or if it also has multiple interpretations. Is there any reference where this is stated clearly or is it just something that everybody agrees with and just knows? You are correct is saying that the labelling is all down to convention and one hopes that a convention is clearly stated before one attempts to start labelling. $V_$ could mean the force on body $A$ due to body $B$ or the force due to body $A$ on body $B$. Rather than try to respond to your questions point by point, perhaps the following will help you to make sense of this. If after considering the following you still have questions, please comment further. Let's start with the following definition of voltage, or potential difference, from the NCEE reference handbook for the FE exam for Electrical and Computer Engineering. Voltage : The potential difference $V$ between two points is the work per unit charge required to move the charge between the points. Let's apply this definition to the term $V_$ which point is considered high potential and which point low potential, $A$ or $B$? That will depend on the direction of the electric field betwee...

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