- #1
PhysE
- 10
- 0
Hi all, first post, I hope this is the right place.
As I understand, voltage is a measure of the energy given to each coloumb of charge. Therefore, a cell with a higher emf will give more joules of energy to each coloumb of charge.
However, voltage is also the driving force behind getting a current to flow. When a voltage is applied to a conductor a current can start flowing through it as it pushes the current round the circuit? (This last part seems a little cloudy and I do not fully grasp how it does so.)
However, when the voltage is increased the current also increases. This does not seen to make sense to me because in my mind applying a higher voltage would only give each coloumb of charge more energy meaning the current flowing is the same but has more energy? - I fail to see the relationship between voltage and how it affects the current.
I have read through books and countless websites yet I still cannot grasp this fundamental part of electricity! Any help would be much appreciated.
Thanks in advance.
As I understand, voltage is a measure of the energy given to each coloumb of charge. Therefore, a cell with a higher emf will give more joules of energy to each coloumb of charge.
However, voltage is also the driving force behind getting a current to flow. When a voltage is applied to a conductor a current can start flowing through it as it pushes the current round the circuit? (This last part seems a little cloudy and I do not fully grasp how it does so.)
However, when the voltage is increased the current also increases. This does not seen to make sense to me because in my mind applying a higher voltage would only give each coloumb of charge more energy meaning the current flowing is the same but has more energy? - I fail to see the relationship between voltage and how it affects the current.
I have read through books and countless websites yet I still cannot grasp this fundamental part of electricity! Any help would be much appreciated.
Thanks in advance.