Get help now
  • Pages 2
  • Words 325
  • Views 84
  • Download

    Cite

    Morton
    Verified writer
    Rating
    • rating star
    • rating star
    • rating star
    • rating star
    • rating star
    • 5/5
    Delivery result 4 hours
    Customers reviews 257
    Hire Writer
    +123 relevant experts are online

    Physics Essay Summary

    Academic anxiety?

    Get original paper in 3 hours and nail the task

    Get help now

    124 experts online

    Strictly speaking, will a penny be slightly more massive if it has a negative charge or a positive charge? Explain. A negative charge because when it is negatively charged electrons are added to the penny. 17. What is the voltage at the location of a 0. 0001 C charge that has an electric potential energy of 0. 5 J (both voltage and potential relative to the same reference point)? Potential = energy Charge = 0. 5 J / 0. 0001 c = 5,000 v 20.

    Why? Brass doesn’t erode and it doesn’t polarize. Next the reason it is recorded on a metal plaque is to show record of where the boat was manufactured and to give a changeless frame number and year it was constructed or dispatched. 34. Your friend says that, if you crank the shaft of a DC motor manually, the motor becomes a DC generator. Do you agree or disagree? Defend your position. Agree. Any coil of wire spinning in a magnetic field that cuts through the magnetic field is a generator. 41 .

    How does the current in the secondary of a transformer compare with the current in the primary when the secondary voltage is twice the primary voltage? Transformers must conserve energy. Since the energy of an electric current is proportional to the product of current and voltage and since energy output must be equal to or less than the energy input, increasing the voltage requires a responding decrease in current! If voltage increases by lox then the current must usually is, less. ] 48.

    What is wrong with the following scheme? To generate electricity without fuel, arrange a motor to run a generator that will produce electricity that is stepped up with transformers so that the generator can run the motor and simultaneously furnish electricity for other uses. Every step described in this process involves some form energy dissipation in the form, usually in the form of heat. All this can do is to waste energy. The motor heats up, the transformer heats up and the generator heats up.

    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

    Physics Essay Summary. (2018, Oct 23). Retrieved from https://happyessays.com/physics-essay-summary/

    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