Recent content by Sharon Sze

  1. S

    How does a loop of wire in a generator produce alternating current?

    A. by creating a varying magnetic field with its rotational kinetic energy B. by rotating through areas of high and low electrical force C. by creating current by rotating in an existing magnetic field D. by rotating in a constant electric field E. by being wound around a metal core to...
  2. S

    suppose you're experimenting with two electrically charged tomatoes?

    a.First, you double the distance between them, without changing the charges. Will the electrostatic force exerted by one tomato on the other also double, or change by a different factor? By how much and why? b.Next, you double the magnitude of the charges on both of them, but keep the distance...
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