Electricity

A:

There are a number of advantages, such as its renewable nature, and disadvantages, such as the high initial cost, that are worth consideration when it comes to solar power. The overall benefits of using solar energy over other sources of energy, such as the oil, are high, including the fact that it is friendly to the environment.

See Full Answer
Filed Under:
  • Who invented neon lights?

    Q: Who invented neon lights?

    A: At the beginning of the 20th century, French engineer, chemist and inventor Georges Claude invented the neon lamp. He sent electricity into a tube of neon gas, which had been discovered by William Ramsey and M. Travers in 1898.
    See Full Answer
    Filed Under:
  • What generates electricity

    Q: What generates electricity

    A: While there are many different methods of generating electricity, most electricity that powers homes and businesses comes from electric turbines. These devices spin a magnetic core through copper wiring, creating a charge through magnetic induction. In many cases, the energy to turn the turbine comes from steam generated by coal, natural gas or nuclear fission. In more sustainable cases, moving water or wind turns the turbine and generates electricity.
    See Full Answer
    Filed Under:
  • What will moving electric charges interact with?

    Q: What will moving electric charges interact with?

    A: Moving electric charges will interact with both electric and magnetic fields. Electric fields exert forces on charges regardless of whether or not they're moving. However, magnetic fields only interact with moving charges.
    See Full Answer
    Filed Under:
  • How do photovoltaic cells work?

    Q: How do photovoltaic cells work?

    A: When photovoltaic cells are hit by sunlight, photons are absorbed, electrons are released and capturing those free electrons causes an electric current. Photovoltaic cells create a direct current (DC), which must be transformed into an alternating current (AC) for industry and home use. Photovoltaic systems rely on an inverter to accomplish this conversion.
    See Full Answer
    Filed Under:
  • Can you get struck by lightning through a window?

    Q: Can you get struck by lightning through a window?

    A: Lightning can strike items and people through windows. As a result, the National Weather Service advises people to stay away from windows during lightning storms.
    See Full Answer
    Filed Under:
  • How did Albert Einstein change the world?

    Q: How did Albert Einstein change the world?

    A: Time magazine named Albert Einstein the "Person of the Century" for the 20th century. Given his achievements as a physicist, the epochal impact of his ideas and theories, and his courageous personal and political stands on important issues, it is easy to see why Einstein was a top contender.
    See Full Answer
    Filed Under:
  • How far does light travel in one year at 3 x 108 m/s?

    Q: How far does light travel in one year at 3 x 108 m/s?

    A: According to Universe Today, light travels approximately 9.5 trillion kilometers or 5.9 trillion miles in a year. Light years are commonly referenced units, but astronomers tend to use a unit known as the parsec, equivalent roughly to 3.26 light years.
    See Full Answer
    Filed Under:
  • Can you use a 12-gauge wire with a 30-amp breaker?

    Q: Can you use a 12-gauge wire with a 30-amp breaker?

    A: A 30-amp breaker does not operate safely with a 12-gauge wire. The minimum wire size that is allowable for use with a 30-amp breaker is 10 gauge.
    See Full Answer
    Filed Under:
  • Where is nuclear energy used?

    Q: Where is nuclear energy used?

    A: Nuclear energy is mostly used for electric power generation. According to the World Nuclear Association, there were over 430 commercial nuclear power reactors operating in 31 countries as of April 2014, with over 370,000 MW of total capacity. Approximately 70 more reactors were under construction as of April 2014.
    See Full Answer
    Filed Under:
  • What happens to the current in a short circuit?

    Q: What happens to the current in a short circuit?

    A: When a short circuit occurs, electrical current experiences little to no resistance because its path has been diverted from its normal direction of flow. This in turn produces excess heat and can damage or destroy an electrical appliance. It can also create a fire hazard and an electrical shock hazard if left unattended
    See Full Answer
    Filed Under:
  • What are examples of conductors?

    Q: What are examples of conductors?

    A: Examples of conductors include the human body, metals, aqueous solutions of salt, graphite, copper, silver and gold. Conductors are materials that can transfer heat and transmit electricity. Conductors have a high density, allowing particles to flow freely and collide.
    See Full Answer
    Filed Under:
  • How does a switch work on a circuit?

    Q: How does a switch work on a circuit?

    A: A switch works by interrupting current flow around an electrical circuit. A basic switch is a binary device: it is either open (off) or closed (on). The simplest type of switch is one that comprises two metal strips that are brought into contact by a spring or some other form of actuating mechanism.
    See Full Answer
    Filed Under:
  • How do electric trains work?

    Q: How do electric trains work?

    A: Electric trains use electricity to power electric motors, driving their wheels and providing locomotion. The electricity comes from one of three sources. It is either delivered via an electrified third rail beneath the train, via electrified cables above the train, or stored in batteries on board the train.
    See Full Answer
    Filed Under:
  • What are the advantages and disadvantages of electrical energy?

    Q: What are the advantages and disadvantages of electrical energy?

    A: Electrical energy comes from renewable and nonrenewable sources; it is generally inexpensive and readily available, but it leaves many appliances and heating units defunct when power supplies are interrupted. The benefits and drawbacks of electrical energy depend primarily on its source. Electricity created from fossil fuels is generally less expensive for consumers than electricity derived from renewable energy sources, such as solar and wind, but centralized forms of power can leave households and business offices disabled during severe weather.
    See Full Answer
    Filed Under:
  • What are some real life examples of series circuits?

    Q: What are some real life examples of series circuits?

    A: The most common series circuit in everyday life is the light switch. A series circuit is a loop that is completed with a switch connection sending electricity through the loop.
    See Full Answer
    Filed Under:
  • How are conductors and insulators alike?

    Q: How are conductors and insulators alike?

    A: Conductors are materials that allow the flow of electric current, whereas insulators do not. While conductors and insulators are different in that respect, their similarity is in their makeup of atoms. It is these atoms that either have room to float around to facilitate conduction or have little freedom to move around; this lack of freedom makes the material they form an insulator.
    See Full Answer
    Filed Under:
  • How is wind power made?

    Q: How is wind power made?

    A: Wind power harnesses the movement of the wind to turn electrical turbines, generating power. Large windmill-like turbines with canted blades catch the wind, rotating around a central axle. This axle connects to the central rotor of an electric turbine. As the turbine spins, the interaction of copper wires and magnets creates an electrical current.
    See Full Answer
    Filed Under:
  • How far can lightning travel in water?

    Q: How far can lightning travel in water?

    A: Generally, lightning can travel for 20 feet through water before dissipating. How far the charge travels depends on the intensity of the lightning, topography of the water, salinity and temperature. Lightning does not penetrate deep into water, but the charge disperses in all directions, favoring the surface.
    See Full Answer
    Filed Under:
  • How can I make static electricity?

    Q: How can I make static electricity?

    A: There are many ways to make static electricity. To create a small amount of static electricity a person can develop a static charge by rubbing a glass rod with a silk cloth or amber against wool. The static charge will allow the glass and the amber to attract small amounts of paper and plastic.
    See Full Answer
    Filed Under:
  • How many lumens does a 100-watt incandescent light bulb give off?

    Q: How many lumens does a 100-watt incandescent light bulb give off?

    A: According to Energy Star, a standard 100-watt incandescent light bulb emits 1,600 lumens of visible light. The luminous efficacy of an incandescent light bulb is set at 16 lumens per 1 watt.
    See Full Answer
    Filed Under:
  • What is the definition of hydroelectric power?

    Q: What is the definition of hydroelectric power?

    A: Hydroelectric power is the converting of energy coming from running water to produce electricity. Hydroelectricity is a similar term that refers to the electricity that is produced from this process.
    See Full Answer
    Filed Under: