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What is the definition of a watt?
Watts measure the power consumed by an appliance or bulb. One watt is equal to one joule of energy used per second, or 1/746 horsepower.
What is the object shown in the picture?
Wire nuts, or wire connectors, are used to securely cover and insulate two wires that have been twisted together.
Where are electric meters typically found?
Typically, the electric meter is situated outside for easy reading by utility workers. To locate it, trace the power lines from the street to your home, and you'll find it mounted on the wall.
What does the acronym LED stand for?
A Light Emitting Diode (LED) bulb consumes less electricity and remains cooler than incandescent bulbs, resulting in significant energy savings.
What is the object shown in the picture?
A Compact Fluorescent Light (CFL) bulb consumes less electricity than incandescent and halogen bulbs, but it must be disposed of correctly to avoid mercury contamination.
What is responsible for securing a ceiling fan to the ceiling?
A ceiling fan must be secured to a mounting bracket, as the wires alone cannot keep it in position.
What does wire gauge refer to?
Wire gauge refers to the cross-sectional size of a wire, indicating the amount of copper or aluminum it contains. A higher gauge number means a thinner wire diameter.
What is the object shown in the picture?
An electrical fuse is a thin filament that melts and interrupts the circuit if the current becomes too excessive.
What role does a ground wire play?
A ground wire provides an alternate path to the earth, separate from the normal current-carrying path, ensuring safety by directing excess electricity away from the appliance. In household circuits, it's connected to the electrical neutral at the service panel to ensure a low-resistance path that trips the circuit breaker in case of a fault.
What color is commonly used for neutral wires?
The neutral wire is typically white or grey. Adhering to this color code is essential for clearly identifying the function of each wire in your electrical system.
How can you distinguish a three-way switch from a two-way switch?
A three-way switch features an additional terminal to connect a second hot wire between switches, commonly used for controlling lights from multiple locations.
What function does a "hot" wire serve?
The "hot" wire transports electrical current from the power source to the outlet, fixture, and so on. As the live part of the circuit, it constantly carries electricity, making it hazardous to touch when connected to a power source.
What is the object shown in the picture?
A junction box contains two connected wires, often placed behind outlets and switches. It acts as a protective enclosure, safeguarding electrical connections.
What is the diameter, in inches, of a solid 10 AWG wire?
The higher the gauge number, the smaller the wire's diameter. At 40 AWG, a solid wire measures only 0.0032 inches in diameter.
What is the object shown in the picture?
GFCI stands for Ground-Fault Circuit Interrupter, and GFCI outlets are used in areas with potential moisture to protect against electrical shorts by cutting off power. They feature both a test and reset button.
What is the object shown in the picture?
Fish tape is used to assist in pulling wires through finished walls. It gets its name because, much like fishing, it's difficult to push a wire through a conduit—you have to "fish" it through.
What type of cable is shown in the picture?
Romex cable is frequently used in homes for wiring outlets and light fixtures because it combines the hot, neutral, and ground wires into one convenient package.
What does a dedicated circuit refer to?
A dedicated circuit is connected to a single appliance, typically a large one. When the breaker is tripped, only that appliance is affected.
What tool is depicted in the image?
Wire strippers are tools designed to remove the insulation from wires, exposing the metal part for connection.
How can you determine your home's total available amperage?
Amperage (amps) refers to the total electrical load your house can handle at once. This information can be found on the main breaker in your breaker box. Most modern homes are equipped with a 200 amp service.
What type of plug is shown in the image?
Type B plugs are primarily used in North America, although plug types can range from A to L globally.
Where should a ground wire generally be attached?
The ground wire should be connected to the metal ground screw of your outlet, fixture, or junction box. Its role is to link all grounded components and direct any excess electricity back to its source.
What defines a voltage surge?
A voltage surge is an unforeseen increase in voltage that can damage the electrical components of a system. A surge protector prevents such spikes from harming delicate electronics.
What is the function of the neutral wire?
The neutral wire completes the circuit by carrying electricity from the fixture back to the electrical panel, ensuring the flow of electricity in a continuous loop.
What is the object shown in the picture?
Lineman's pliers are versatile tools used for various tasks, including gripping, twisting, bending, and cutting wire.
What is the meaning of G.F.C.I.?
Ground-Fault Circuit Interrupter (GFCI) outlets are typically installed in areas like kitchens and bathrooms, where water is nearby.
What is the object shown in the picture?
A voltage tester is a crucial safety tool that allows you to measure the potential electrical current that may be present at an outlet.
What type of gloves provide protection against electric shock?
Gloves can only protect you from electrical shocks if they are made of 100% rubber without any holes or tears. Most gloves fall short of this standard and won't provide protection in an electrical incident.
How does a modern dimmer switch operate?
Modern dimmer switches rapidly turn the circuit on and off to reduce light intensity. The type of light fixture installed can also impact the performance of the dimmer switch.
What is the object shown in the picture?
Steel conduit is designed to protect wires that will be buried underground. While most conduit is rigid, flexible conduit is also used for certain applications.