Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/25

Click to flip

25 Cards in this Set

  • Front
  • Back
The letter symbol used to represent electrical current is....
I
The letter symbol used to represent electrical pressure is... ____ or ____
V or E
The letter symbol used to represent electrical resistance is...
R
The point in an aircraft electrical system from which the various circuits get their power is called a/an..
bus
Three things that happen in an electrical circuit when current flows through it are:
Heats up
Magnetic Field
Voltage drops
The longer line in the symbol for a battery indicates the........(positive or negative) terminal.
positive
Electrons flowing in an electrical circuit flow in the (same or opposite) direction as the arrowheads in a semiconductor diode symbol.
opposite
Conventional current in an electrical circuit is assumed to flow in the...(same or opposite) direction as the arrowheads in a semiconductor diode symbol.
same
Three things that must be included in all complete electrical circuits are:
Source of electric, a load, and conductors.
If the bar in the symbol for a semiconductor diode is connected to the negative terminal of a battery, the diode is (forward or reverse) biased.
forward
A forward-biased diode act as a/an (open or closed) switch.
closed
The voltage drop across a forward biased silicon diode is approximately____volt.
.7
The voltage drop across a forward biased silicon diode (does, does not) vary with the current flow flowing through it.
does not
A semiconductor device that can be used as a voltage sensor is a/an _____.
zener diode
A zener diode used as a voltage regulator is (forward or reverse) biased.
reverse
An electrical relay has a (fixed or movable) core.
fixed
A solenoid has a (fixed or movable) core.
movable
When the base of a NPN transistor has the same polarity as the collector, th etransistor acts as a/an (open or closed) switch.
closed
When a transistor is connected in an amplifier circuit, bringing its base polarity closer to that of the collector(increases or decreases) the collector-emitter current.
increases
A semiconductor device that acts in the same way as a holding relay is a _________
silicon controlled rectifier
In a complete series circuit, the sum of the voltage drop is the same as the applied voltage. This sentence is (true or false)
True
The voltage drop across an open switch in a series circuit is (zero volts or battery voltage)
battery voltage
The voltage drop across a closed switch in a series circuit is (zero volts or battery voltage)
Zero volts
The amount of current that flows through each path of a parallel circuit is determined by the ______ of the path.
resistance
The voltage across each path of a parallel circuit is equal to the ____________.
battery voltage