Basic Electrical Engineering BTEE-101-18 Quiz

An electrical component designed to resist the flow of current. Measured in ohms.

The relationship between voltage (V), current (I), and resistance (R) in a conductor: V=IR.

The ability of a material to resist the flow of current.

The change in resistance of a conductor with temperature. For metals, resistance increases with temperature.

A circuit element that stores energy in its magnetic field, created by a coil of wire.

The property of an inductor that measures its ability to store energy in a magnetic field. Measured in Henries.

The effect of a changing current in one coil inducing a voltage in a nearby coil.

A circuit element that stores electrical energy in an electric field. It consists of two conductive plates separated by a dielectric.

The ability of a capacitor to store electrical energy. Measured in Farads.

The rate at which energy is transferred in an electrical circuit. Measured in Watts.

The total energy delivered by an electrical source to a device over a given time. Measured in Joules.

A fundamental law stating that the algebraic sum of all currents entering and leaving a node in a circuit is zero.

A fundamental law stating that the algebraic sum of all voltage drops and rises around a closed loop in a circuit is zero.

A source that provides a constant voltage, regardless of the current drawn.

A source that provides a constant current, regardless of the voltage across it.

A source that provides a voltage that changes periodically over time, typically in a sinusoidal waveform.

The effective or average value of an AC current or voltage. It is calculated as the root-mean-square (RMS) value.

The cosine of the phase angle between the voltage and current in an AC circuit. It indicates the efficiency of energy transfer.

Circuits that store energy in electric fields, resulting in current leading the voltage.

Circuits that store energy in magnetic fields, resulting in current lagging the voltage.

Circuits where current and voltage are in phase, leading to a power factor of 1.

The total opposition to current flow in an AC circuit, including both resistance and reactance.

The opposition to current flow caused by inductance. Measured in ohms.

The opposition to current flow caused by capacitance. Measured in ohms.

The power dissipated by resistance in an AC circuit. Measured in Watts.

The power stored in and returned by reactances in an AC circuit. Measured in Volt-Ampere Reactive (VAR).

The total power supplied to an AC circuit, considering both real and reactive power. Measured in Volt-Ampere (VA).

A combination of various electrical elements connected in any way, with or without energy sources.

A closed network with an energy source, allowing for current flow.

An element that provides energy to a circuit, like a voltage or current source.

An element that consumes or stores energy but does not generate it, like a resistor, inductor, or capacitor.

A component that maintains a constant voltage, regardless of the current drawn. It has a very small internal resistance.

A component that maintains a constant current, regardless of the voltage across it. It has a very high internal resistance.

Elements whose current direction doesn't affect their behavior, like resistors, inductors, and capacitors.

Elements whose behavior changes with the current direction, like diodes, transistors, and voltage/current sources.