Units
The unit of resistance
What is Ohm (Ω)?
The time rate of change of charge in a circuit
What is current?
The sum of the voltages around a closed loop is always equal to 0.
What is Kirchhoff's voltage law?
The connection between two or more branches of a circuit.
What is a node?
The unit of potential difference
What is Volt (V)?
Time rate of energy delivered or absorbed by a circuit element
What is power?
The sum of the currents coming into and out of a node is always 0.
What is Kirchhoff's current law?
A closed path in the circuit that does not contain any other closed paths.
What is an independent loop?
The unit of current
What is Ampere (A)?
Reduces the flow of electric current in a circuite
What is resistance?
The voltage drop across a circuit element is proportional to the current in the circuit and the resistance of the circuit element.
What is Ohm's law?
What is V = IR ?
When a "chain" of circuit elements (such as resistors) share a single/common current.
What is "in series"?
The unit of power
What is Watt (W)?
The difference in energy (or work) required to move a unit charge between two points
What is potential difference/voltage?
The power absorbed or dissipated by a circuit element is proportional to the current running through it and the potential difference (or voltage) across it.
What is P = IV ? What is the power equation?
When two elements share a node pair
What is elements in parallel?
The unit of charge
What is Coulomb (C)?
An electrical property of atomic particles, namely protons, electrons and neutrons.
What is charge?
For resistors in series, the drop of voltage across one resistor is proportional to the value of that resistor divided by the total resistance
What is the voltage divider?
This kind of circuit element can only absorb or dissipate power.
What is a passive circuit element?