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# Electrical fields in circuits - help! watch

1. Hi all!

I just wanted to know if what I have said is correct:

An electric field, in a circuit, is produced by the electrochemical reactions by the power source (e.g. cell). The chemical reactions within the batteries separate, and cause, the positive charges to accumulate on one side and the negative charges to accumulate on the other. This accumulation causes the free-charges (electrons) within the circuit to drift along due to a force experienced from the electric field, that has been set-up by the battery.

Is this right? If it isn't, please can anyone explain and make amendments!

Thanks a lot!
2. In essence you are correct.

Fields are used to describe the forces (vector which therefore has both magnitude and direction) set up around individual or groups of charged particles which interact with other charged particles. They can be both electric and magnetic.

Fields are normally used to describe the forces set up outside the circuit and normally in free space, but yes the electric field is established between the two terminals of the power source corresponding to a movement of positive charge against the electric field which requires work and therefore the charges gain potential energy.
3. (Original post by uberteknik)
In essence you are correct.

Fields are used to describe the forces (vector which therefore has both magnitude and direction) set up around individual or groups of charged particles which interact with other charged particles. They can be both electric and magnetic.

Fields are normally used to describe the forces set up outside the circuit and normally in free space, but yes the electric field is established between the two terminals of the power source corresponding to a movement of positive charge against the electric field which requires work and therefore the charges gain potential energy.
Thanks a lot for reading and commenting!

What happens when the battery voltage is increased? does it mean that the electrochemical reactions within the cell provide the charges with greater potential energy (setting-up of a larger electric field), thus the current increases too?

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