Get help now
  • Page 1
  • Words 236
  • Views 335
  • Download


    Verified writer
    • rating star
    • rating star
    • rating star
    • rating star
    • rating star
    • 4.9/5
    Delivery result 5 hours
    Customers reviews 612
    Hire Writer
    +123 relevant experts are online

    Related Topics

    Electrical energy Essay (236 words)

    Academic anxiety?

    Get original paper in 3 hours and nail the task

    Get help now

    124 experts online

    Electrical EnergyA capacitor can store electrical energy. Connecting it across a resistor or other device discharges it. Across the resistor there is a potential difference that creates the electric current.

    When the charge in the capacitor decreases, at the same time the voltage decreases. As a result the rate at which the capacitor is discharged, which is the current, is decreased. The outcome of this is that the capacitor will be completely discharged meaning that both the current and voltage will equal zero. At this time all the energy stored in the circuit will have been transferred to thermal energy at the resistor. A heater uses electrical power. The power dissipated in a resistor is in return proportional to the resistance and the square of the current that passes through it.

    As the energy is changed from electrical to thermal the resistor gets hot. In long distance transmission, current is reduced without reducing power by increasing voltage. The resulting lower current reduces the power loss in the power lines by keeping the current squared factor low. Long-distance transmission lines always operate at high voltage to reduce power loss.

    The electrical energy used by many devices is the rate of energy consumption, which is measured in large numbers of joules called a kilowatt-hour. A kilowatt-hour is the amount of energy equal to 3. 6*10^6 J. It is a unit of energy that is the product of power and time.

    This essay was written by a fellow student. You may use it as a guide or sample for writing your own paper, but remember to cite it correctly. Don’t submit it as your own as it will be considered plagiarism.

    Need custom essay sample written special for your assignment?

    Choose skilled expert on your subject and get original paper with free plagiarism report

    Order custom paper Without paying upfront

    Electrical energy Essay (236 words). (2019, Jan 27). Retrieved from

    Hi, my name is Amy 👋

    In case you can't find a relevant example, our professional writers are ready to help you write a unique paper. Just talk to our smart assistant Amy and she'll connect you with the best match.

    Get help with your paper
    We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy