Difference between revisions of "Electrostatic Potential"
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===About Electrostatic Potential=== | ===About Electrostatic Potential=== | ||
| − | : '''Electrostatic potential''' can be considered like | + | : '''Electrostatic potential''' can be considered like the [[Gravitational Potential Energy Store|gravitational potential energy store]] of 1 [[kilogram]]. [[Work Done|Work]] must be done to on that 1kg [[object]] to lift it to a given height in a [[Gravitational Field|gravitational field]]. |
: [[Work Done|Work]] is done by an [[Electrical Current|current]] to move a [[Electrical Charge|charge]] from one '''potential''' to another '''potential'''. | : [[Work Done|Work]] is done by an [[Electrical Current|current]] to move a [[Electrical Charge|charge]] from one '''potential''' to another '''potential'''. | ||
: If two '''potentials''' are the same, then no [[Work Done|work]] is done on the [[Electrical Charge|charge]]. | : If two '''potentials''' are the same, then no [[Work Done|work]] is done on the [[Electrical Charge|charge]]. | ||
: If two '''potentials''' are different this is called a [[Potential Difference|potential difference]] and [[Work Done|work]] is done on an [[Electrical Charge|electrical charge]]. | : If two '''potentials''' are different this is called a [[Potential Difference|potential difference]] and [[Work Done|work]] is done on an [[Electrical Charge|electrical charge]]. | ||
: Without a [[Potential Difference|'''potential''' difference]] [[Electrical Current|current]] will not pass through an [[object]]. This is why birds can stand on high '''voltage''' power lines. The '''potential''' at each of their feet is identical, so no [[Electrical Current|current]] will pass through their body. | : Without a [[Potential Difference|'''potential''' difference]] [[Electrical Current|current]] will not pass through an [[object]]. This is why birds can stand on high '''voltage''' power lines. The '''potential''' at each of their feet is identical, so no [[Electrical Current|current]] will pass through their body. | ||
Latest revision as of 22:29, 30 September 2019
Key Stage 4
Meaning
Electrostatic potential is the work done on a positive electrical charge of +1 Coulomb to push it to a location in an electrostatic field.
About Electrostatic Potential
- Electrostatic potential can be considered like the gravitational potential energy store of 1 kilogram. Work must be done to on that 1kg object to lift it to a given height in a gravitational field.
- Work is done by an current to move a charge from one potential to another potential.
- If two potentials are the same, then no work is done on the charge.
- If two potentials are different this is called a potential difference and work is done on an electrical charge.
- Without a potential difference current will not pass through an object. This is why birds can stand on high voltage power lines. The potential at each of their feet is identical, so no current will pass through their body.