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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
E7
E7G
E7G01
E7G01:
What is the typical output impedance of an op-amp?
Very low
Very high
100 ohms
1000 ohms
E7G01
E7G02
E7G03
E7G04
E7G05
E7G06
E7G07
E7G08
E7G09
E7G10
E7G11
E7G12