Beginning Flashcards
What is Current?
Flow of electrons in a circuit
What is an Insulator?
A non conductive material that doesn’t conduct electrons
What is Voltage?
Similar to the pushing force, like water in a container, being let out
More electrons?
More voltage
What forces electrons to flow?
Applying a Voltage
How to measure the current in the circuit in what units?
Amp’s (Ampere’s)
Difference between Conventional current and Electron Flow?
Both theories.
One from Benjamin Franklin, electricity flows from Positive (+) to Negative (-), Conventional Current.
Joseph Thompson, electricity, from Negative (-) from to Positive (+)
AC / DC current
Alternating Current
Direct Current
What are special about AC transfomers?
They allow the change of Voltage in the circuit
Also allows for the transport of electricity over long distances
Inverter does?
Converts AC to DC
What is an Amp?
Amp - One Coulomb per Second
Simple Circuit?
1.5 Volts & 1.5 Watt
requires, 1 Amp
Say Amps, instead, why?
Not practical to say: "Coulomb per second" Or "Quadrillion Electrons" so we just say Amp
Light with more resistance?
Less bright!
Resistors
Make it harder for electrons to flow through
Where does a Resistor’s wasted energy go?
Out and away as Heat!
Fuse(s)
Small inner wire, rated to handle a certain amount of current
Circuit Breakers
A switch that opens to break the circuit, to prevent overload and protect the devices on the circuit
What does more Voltage allow?
More Voltage = More Current
Potential Difference
How much can be potential done by circuit
Battery boosted?
If another battery is added in Series, and Voltage is boosted
Battery in Parnell?
Voltage stays the same
Voltage and Volt are Different!
Voltage - pressure
Volts - the Units used to measure the pressure in
DC Circuit
Series, Parallel, Parallel & Series
Resistance in Series Circuits
R(T) = R(1) + R(2) + R(3) + R(N)
Current Formula(!)
Current (A(amps)) = Voltage (V(volts)) / Resistance (Ω (ohms))
