In a series circuit, what happens to the current?
The current remains the same through all components in the series.
What is the equivalent resistance of resistors in series?
The sum of the individual resistances.
Write the equation for equivalent resistance in series.
R_eq = R₁ + R₂ + … + Rₙ
What does the voltage divider equation determine?
How voltage is proportionally divided among resistors connected in series.
What voltage relationship exists for devices connected in parallel?
Devices in parallel have the same voltage drop across them.
What is the equivalent resistance of resistors in parallel?
The reciprocal of the sum of the reciprocals of the individual resistances.
Write the equation for equivalent resistance in parallel.
1 / R_eq = 1 / R₁ + 1 / R₂ + … + 1 / Rₙ
What does the current divider equation determine?
How current is proportionally divided among resistors connected in parallel.
What is a short circuit?
A circuit with very low or zero resistance that results in excessive current.
What are the two basic rules for circuit breakers?
The breaker rating must be higher than the expected circuit current and lower than the failure point of the wiring.
What are the ECE 315 rules for circuit breaker design?
Calculate the maximum current, multiply by 1.1 for margin, and round up to the nearest whole or half value using engineering notation.
