Explain Kirchoff's Law.
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What is the difference between permanent and temporary magnets when the external magnetizing force is removed?
Permanent magnets retain their magnetism. Temporary magnets rapidly lose magnetism.
How do you express Ohm's Law as an equation?
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What's the function of a capacitor in an AC (alternating current) circuit?
To store eletricity.
Describe magnetism.
An objects property which attracts metallic substances.
How is inductance represented in an AC circuit?
By a coil.
One Kilowatt is equal to how many watts?
1000 watts
What Law is relevant when it comes to voltage?
Kirchoff ́s law.
You must apply a correction to the specific gravity that varies between what two values?
When the temperature is less than 70°F or more than 90°F.
Three types of D.C. Electrical circuits:
Series, Parallel and Series/Parallel. (complex)
What are some common methods electrical energy can be produced?
Pressure (PIEZOELECTRIC MATERIALS), Chemical (BATTERY), Thermal (THERMOCOUPLES), Sun Light.
How much voltage do most aircraft systems require for special equipment?
Most 24 volts, needs 400Hertz AC current.
What are the basic elements of Ohm’s law?
Voltage, Resistance , Current.
What change occurs in a D.C. (direct current) circuit when applied voltage is increased & resistance remains constant?
Current increases.
What is a common cause of damage to solid-state components and/or integrated circuits?
Electro-Static discharge (ESD) from the human body during handling.
Describe inductance.
Inducted voltage which opposite in direction to the applied voltage.
How is capacitance represented in an AC circuit?
By a Capacitor.
What law governs the basic study of electricity?
Ohm’s law.
What types of circuits do A&Ps encounter on an aircraft?
A combination circuit, series-parallel.
Scientifically, power is measured in:
Watts.
Compare AC & DC circuits in aircraft.
DC flows constantly in 1 direction. AC can change direction at/during regular intervals, is lighter and its voltage can be stepped up/down ( with transformer).
What makes up an electrical circuit?
A source of electrical energy, a resistance(load) and conductors (wires).