Physics equations (electric and magnetic fields)

1. How can you work out the energy stored in a capacitor?

  • E = 1/2(Q^2/C)
  • E = 1/2QV^2
  • E = VQ
  • E = 1/2CV
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2. What does this equation calculate: Φ = BA

  • Induced emf
  • Magnetic flux density
  • Magnetic flux
  • Electric field strength

3. Which equation can work out the force exert on a wire in a magnetic field?

  • F = EQ
  • F = ma
  • F = BIL
  • F = bqv

4. Which equation can work out the force exerted on a charged particle in a magnetic field?

  • F = EQ
  • F = bqv
  • F = BIL

5. What does this equation calculate: NΦ

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

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