All Flashcards
What is the effect of increasing resistance in a circuit with constant voltage?
The current decreases (Ohm's Law).
What happens when a dielectric material is inserted into a capacitor?
The capacitance increases, allowing it to store more energy.
What are the differences between Direct Current (DC) and Alternating Current (AC)?
DC: Current flows in one direction | AC: Current reverses direction periodically.
What are the differences between series and parallel resistors?
Series: Resistors are connected end-to-end, same current flows, R_total = R1 + R2 + R3 + ... | Parallel: Resistors are connected side-by-side, voltage is the same, 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...
What is the definition of Electric Current?
Flow of electric charge (measured in Amperes, A).
What is the definition of Voltage?
Electric potential difference (measured in Volts, V).
What is the definition of Resistance?
Opposition to current flow (measured in Ohms, Ω).
What is the definition of Electric Power?
Rate of energy transfer (measured in Watts, W).
What is the definition of Electric Flux?
Measure of electric field through a surface.
Define Kirchhoff's Current Law (KCL).
Current in = Current out at a node.
Define Kirchhoff's Voltage Law (KVL).
Sum of voltage drops in a loop = 0.