Potential difference that needs to be mantained

Thread starter alicia113
Start date Aug 22, 2012
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Difference Potential Potential difference

In summary, potential difference, also known as voltage, is the difference in electric potential between two points and is necessary to allow for the flow of electric current and power electrical devices. It is maintained by a power source, such as a battery or generator, and can lead to disruptions in electron flow and equipment damage if not maintained. Potential difference is not the same as current, as it is the force driving electron flow, while current is the rate of electron flow. It is measured in volts using a voltmeter connected in parallel to the circuit.

Aug 22, 2012

alicia113

Calculate the potential difference that would have to be maintained across the plates of a parallel plate apparatus, if the plates were 1.2cm spat, to create an elecric field strength of 1.5x10^4 N/C.

i have no idea how to do this! someone please help

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Aug 23, 2012

PhysicsIsKing

I think you just need to use E=V/d (rearrange to get V) :)

1. What is potential difference and why does it need to be maintained?

Potential difference, also known as voltage, is the difference in electric potential between two points. It is necessary to maintain this difference in order to allow for the flow of electric current and to power electrical devices.

2. How is potential difference maintained?

Potential difference is maintained by a power source, such as a battery or generator, which creates a potential difference between its positive and negative terminals. This maintains a constant flow of electrons and ensures that the potential difference remains stable.

3. What happens if potential difference is not maintained?

If potential difference is not maintained, the flow of electrons will be disrupted and electrical devices will not function properly. This can lead to power outages or damage to equipment.

4. Is potential difference the same as current?

No, potential difference and current are two different electrical quantities. Potential difference is the force that drives the flow of electrons, while current is the rate at which the electrons flow.

5. How is potential difference measured?

Potential difference is measured in volts (V) using a voltmeter. The voltmeter is connected in parallel to the circuit at the points where the potential difference is to be measured.