DC Electric Circuits - Theory II

These flashcards cover key vocabulary and concepts related to DC electric circuits, including definitions and principles of circuit components and calculations.

Ohm's Law

A fundamental principle in electrical engineering that relates voltage (V), current (I), and resistance (R) in a circuit, represented as V = IR.

Closed-loop circuit

A circuit that allows current to flow; it contains a complete path for current.

Open-loop circuit

A circuit where the electrical path is broken, preventing current from flowing.

Series connection

A type of circuit connection where components are connected one after another, so the same current flows through each component.

Parallel connection

A type of circuit connection where components are connected across the same voltage source, allowing multiple paths for current.

Power (P)

The rate at which energy is released or consumed in an electrical circuit, calculated as P = VI.

Voltage (V)

The electrical potential difference between two points in a circuit; measures how much energy is required to move a charge.

Current (I)

The flow of electric charge in a circuit, measured in amperes (A).

Resistance (R)

The opposition to the flow of current in a circuit, measured in ohms (Ω).

Energy consumption

The total energy used by a device over time, calculated as Power (P) multiplied by Time (h).