Physics equations (electric and magnetic fields)

1. Given that you need to find the current at time, t, and you know the initial current and time constant, which equation do you use?

  • V = Vo e^-t/RC
  • I = Io e^-t/RC
  • P=VI
  • V=IR
  • Q=It
  • t = RC
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Other questions in this quiz

2. What does this equation calculate: NΦ

  • Induced emf
  • Magnetic flux
  • Flux linkage
  • Magnetic flux density

3. Which equation is correct: a) Q=I/t, b) Q=It or c) Q=PV

  • b
  • a
  • c

4. Is this equation correct: E = CV^2

  • True
  • False: it's E = 1/2CV^2
  • False: it's E = 1/2CV

5. Is this equation correct: P=V/I

  • False: it's P=I/V
  • False: it's P=It
  • False: it's P=VI
  • True

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