Principles Of Radio Communication

Principles Of Radio Communication

Author: Morecroft, John Harold, 1881-1934

Year: 1921

CHAPTER I Fundamental Ideas and Laws Electrons — Electric fields — Induced charges — Electric current — Conductors and insulators — Continuous and alternating current — Wave shape — Magnetic fields — Units — Induced e.m.f. — Self-induction — Coupling — Capacity — Oscillograph — Current flow in inductive and condensive circuits — Time constant — Alternating-current flow in various circuits — Effect of frequency — Transients in inductive circuits — Resonance — Decrement — Decrement from resonance curve — Parallel circuits — Various types of coupling — Effect of neighboring circuits on resistance and reactance — Resonance in coupled circuits — Resonance in electrically long circuits 1-110 CHAPTER II Resistance — Inductance — Capacity General concept of resistance — Various factors affecting resistance — Skin effect and its elimination — Skin effect in coils — Eddy currents in iron cores — Characteristics of iron core coils — Resistance of arc and spark — Resistance of an antenna. Coefficient of self-induction — Self-induction of single vertical wire — Single horizontal wire — Single circular turn — Single layer solenoid — Flat spiral — Toroid — Single layer square coil — Flat square c