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- PHY102 Physics II © Dr.Cem Özdoğan
- Electric field creates a force which acts on conduction electrons!
- This forces causes to move electrons and electric current is established.
- Fig. (a) reminds us, any isolated conducting loop is all at the same potential. No electric field can exist within it or along its surface.
- If we insert a battery in the loop, as in Fig. (b),
- The conducting loop is no longer at a single potential.
- Electric fields act inside the material making up the loop, exerting forces on internal charges, causing them to move and thus establishing a current.