SUMMARY
The electric field outside an 8mm diameter coaxial cable with a +30mC charge on the inner conductor and a -30mC charge on the outer braid is zero at a distance of 4cm from the center. This conclusion is derived using Gauss' Law, which states that the electric field in a region with symmetrical charge distribution can be determined by the net enclosed charge. Since the charges are equal and opposite, they cancel each other out, resulting in no electric field in the specified region.
PREREQUISITES
- Understanding of Gauss' Law
- Familiarity with electric fields and charge distributions
- Knowledge of coaxial cable structure and properties
- Basic principles of electrostatics
NEXT STEPS
- Study Gauss' Law applications in different charge configurations
- Explore electric field calculations for cylindrical conductors
- Investigate the behavior of electric fields in coaxial cables
- Learn about the implications of charge neutrality in electrostatics
USEFUL FOR
This discussion is beneficial for physics students, electrical engineers, and anyone interested in understanding electrostatics and electric fields in coaxial cable systems.