Electromagnetic Wave Simulation
This simulation demonstrates the relationship between electric and magnetic fields in an electromagnetic wave:
- Frequency: 25 MHz
- Direction of propagation: x-axis
- Electric field (E) at a point: 6.3 V/m along y-axis
- Speed of light (c): 3 × 10⁸ m/s
x (direction of propagation)
y (E-field direction)
z (B-field direction)
Electric Field (E): 6.3 V/m (y-direction)
Magnetic Field (B): 2.1 × 10⁻⁸ T (z-direction)
Physics Calculation:
Given:
- Electric field E = 6.3 V/m (y-direction)
- Wave propagates along x-direction
- Speed of light c = 3 × 10⁸ m/s
Step 1: Calculate magnetic field magnitude
\( B = \frac{E}{c} = \frac{6.3 \, \text{V/m}}{3 \times 10^8 \, \text{m/s}} = 2.1 \times 10^{-8} \, \text{T} \)
Step 2: Determine magnetic field direction
The direction of B must be perpendicular to both E and the direction of propagation.
\( \mathbf{E} \times \mathbf{B} \) must be in the direction of propagation (x-axis)
\( (+\mathbf{j}) \times (+\mathbf{k}) = \mathbf{i} \)
Therefore, B is along the z-direction.
Final result: \( B = 2.1 \times 10^{-8} \, \mathbf{k} \, \text{T} \)