- Magnetic flux through S
- Rate of change of the magnetic flux through S
- Time integral of the magnetic flux through S
- The electric flux through S
**Rate of change of the electric flux through S**

## By definition, the electric displacement current through a surface S is proportional to the

By definition, the electric displacement current through a surface S is proportional to the rate of change of the electric flux through S.

### Displacement Current

The modified or generalization of Ampere’s law written as

The term has a dimension of current called displacement current.

from above, the electric displacement current **I _{d}** through a surface S is proportional to the rate of change of the electric flux through S.

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