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Amateur Extra Class: 2020–2024
Today
Sections
E1: Commission's Rules
E2: Operating Procedures
E3: Radio Wave Propagation
E4: Amateur Practices
E5: Electrical Principles
E6: Circuit Components
E7: Practical Circuits
E8: Signals and Emissions
E9: Antennas and Transmission Lines
E0: Safety
Quick Index
Practice Test
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Element 4
E5
E5B
E5B06
E5B06:
What is susceptance?
The magnetic impedance of a circuit
The ratio of magnetic field to electric field
The imaginary part of admittance
A measure of the efficiency of a transformer
E5B01
E5B02
E5B03
E5B04
E5B05
E5B06
E5B07
E5B08
E5B09
E5B10
E5B11
E5B12