In electromagnetic wave , according to Maxwell , changing electric field gives

Options

A. stationary magnetic field
B. conduction current
C. eddy current
D. displacement current

Explanation

To solve the question "In electromagnetic wave, according to Maxwell, changing electric field gives...", we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Understanding Maxwell's Equations**:
- Maxwell's equations describe how electric and magnetic fields interact and propagate. One of these equations relates to how changing electric fields can create magnetic fields.

2. **Identifying the Relevant Equation**:
- The relevant equation is the modified Ampère's law, which in integral form is expressed as:
\[ \oint \mathbf{B} \cdot d\mathbf{l} = \mu_0 (I + I_d) \]
where \( I \) is the conduction current and \( I_d \) is the displacement current.

3. **Displacement Current**:
- The term \( I_d \) (displacement current) is defined as:
\[ I_d = \epsilon_0 \frac{dE}{dt} \]
where \( \epsilon_0 \) is the permittivity of free space and \( \frac{dE}{dt} \) is the rate of change of the electric field.

4. **Conclusion**:
- From the above relationship, we can conclude that a changing electric field (\( \frac{dE}{dt} \)) contributes to the displacement current. Thus, according to Maxwell, the changing electric field gives rise to a displacement current.

5. **Final Answer**:
- Therefore, the correct answer to the question is that the changing electric field gives a displacement current.