SUMMARY
The discussion focuses on calculating the electric field required to generate a voltage of 1.28 mV across a 1.10 m long FM antenna, which is aligned parallel to the electric field of an electromagnetic (EM) wave. The user initially calculated the energy density (u) as 1.45E-17 using the permittivity of free space (E0) and the root mean square electric field (Erms) of 0.00128V. They later recognized the simplicity of using the equation V = E * d to find the electric field, where V is voltage and d is the length of the antenna.
PREREQUISITES
- Understanding of electromagnetic waves and their properties
- Familiarity with the concepts of voltage, electric field, and antenna theory
- Knowledge of the equation V = E * d for calculating electric fields
- Basic grasp of energy density in electromagnetic fields
NEXT STEPS
- Study the derivation and application of the equation V = E * d in electromagnetic contexts
- Learn about the relationship between electric field intensity and power in antennas
- Explore the concept of energy density (u) in electromagnetic waves
- Investigate the role of antenna length and orientation in receiving EM waves
USEFUL FOR
Students in physics or electrical engineering, particularly those studying antenna design and electromagnetic theory, will benefit from this discussion.