Intuitive Relationships Of Circuits
True or false: In a series circuit, if one light bulb goes out, they all go out?
True
What is the main thing needed for current flow?
A closed circuit
which circuit has no resistance?
Short circuit
What does AC/DC stand for
Alternating Current/Direct Current
True Or False Current always enters the negative side of a resistor
False
In a parallel circuit, adding more resistors has what effect on total current from the power source.
It increases
What are the 3 requirements for current flow?
a source of power, a path for current, and a load
What are the consequences of a short circuit?
circuit damage
What device changes electricity from AC to DC
Rectifier
What do red and black wires mean in a current
Red wire is positive and black wire is negative
When two resistors are in series, the one with more resistance has more of what.
Voltage drop
What can you use to keep current flow?
Resistors, transistor, and diodes
Overheating, fires and potentially explosions
What component is used to change the voltage level in an AC power supply
Transformer
What is deemed a voltage drop?
Any voltage with a + (positive) to - (negative) polarity
Removing a resistor from a parallel circuit does what to the total resistance.
Increases it
What is the rule for current flow?
Kirchhoff's Current Law (KCL) states that the total current entering a junction (or node) in a circuit must equal the total current leaving it.
What happens to the voltage drop across components in a circuit if there is no resistance?
there wouldn't be any
What part of a power supply circuit smooths out the DC voltage after it has been converted from AC
Capacitor
When using conventional current flow, is it possible to trace the direction of the current in the same circuit?
Yes we can trace it by starting at the positive terminal and going to the negative terminal of the battery
In a parallel circuit with three loops, if one loop has a short circuit, what happens to the overall circuit behavior
Most of the current flows through the short, possibly causing overheating or damage.
What material allows current flow?
a conductor
How does ohm's law apply to a circuit with no resistance?
If R=0 and V is non zero, then I becomes infinite
What is the main reason most electronic devices (such as phones and laptops) use DC and not AC
DC provides a steady unidirectional flow of electricity
In a series circuit with three resistors, which resistor has the biggest voltage drops?
The one with the higher resistance