Part 68 (2/2)

The wireless telephone, essential parts, action, arrangement.

Alternating currents, alternating fields.

Transformers, voltage relation of coils, power and core losses.

Self-induction, inductance, and c.o.ke coils, uses, applications.

Impedance, reactance, and resistance; relation and effects.

Condensers, uses and applications with a-c. circuits.

Alternating current power transmission; uses, advantages.

Power factor, lag, lead, volt-amperes, true watts.

Single- and three-phase currents; uses and nature of each.

Three-wire transmission systems, alternators, construction, and action.

A-c. motors, series, induction, synchronous.

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