Recent content by Nerkiot

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    High resistance or low resistance for induction cooktops?

    Induction heating relies on an ac current to produce a changing magnetic field and hence a conductor will experience a changing magnetic flux. This induces an emf and then a current and thus heat. Heat generated is P=I^2 * R From this, it would appear that a very high resistance would lead...
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    Is the Charge Positive or Negative in This Electric Field Scenario?

    Hey guys, just got a question at school and the last part makes no sense. I replicated it almost exactly, except for the diagram. Just imagine the dotted line is a solid line indicating the electric field lines. Ignore the 4 dots around X, it was just to keep the field lines in line.Question 4...
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    If you kick a rolling ball perpendicularly, what happens?

    Hey guys, I've been thinking about inertia/forces for a test I have soon and I've been stumped by a question that the teacher gave us a while ago. Suppose a football is rolling along the ground and you give it a swift kick in a direction perpendicular to its initial motion. In what direction...