# What Is a Potential Difference?

A potential difference is the change in charges between two points in an electrical circuit. The difference is responsible for flow of electricity in power lines and electrical appliances. Very high potential difference is dangerous as it can kill and equipment with such a high voltage should be handled carefully.
potential difference - Definition
(n.) The difference between the potentials of two points in an electric field
Source: Dictionary.com
Potential difference is energy per unit charge that is required to move a charged particle from a reference point to a designated point. The symbol of potential difference is V, which is volt.
Q&A Related to "What Is a Potential Difference"
 Potential difference is the amount of energy per unit charge needed to move a charged particle from one point to another. It is measured in volts, and symbolized as a U. Look here http://answers.ask.com/Science/Other/what_is_poten...
 1. Determine the amount of current traveling through the circuit. This is usually measured in amperes. 2. Measure the amount of resistance in the circuit. This can be from a resistor http://www.ehow.com/how_5143785_calculate-potentia...
 1. Determine the appropriate equation for the situation. In this case, the base equation is E = V/d. E is the strength of the electric field, V is the voltage and d is the distance http://www.ehow.com/how_7926857_calculate-potentia...
 1. Write the equation for the kinetic energy of a charged particle, or ion, in a magnetic field. For example, you write "0.5mv^2 = qV.". 2. Write the meanings of the variables http://www.ehow.com/how_8526460_connect-potential-...
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