Recent content by Clement

  1. C

    Magnetic field and Bainbridge mass spectrometer

    got it, thanks!
  2. C

    Magnetic field and Bainbridge mass spectrometer

    Homework Statement The electric field between the plates of the velocity selector in a Bainbridge mass spectrometer is 1.05 105 V/m, and the magnetic field in both regions is 0.520 T. A stream of singly charged selenium ions moves in a circular path with a radius of 31.0 cm in the magnetic...
  3. C

    Find the value of the potential at the following distances

    got it, thanks!
  4. C

    Find the value of the potential at the following distances

    Homework Statement A total electric charge of 2.00 nC is distributed uniformly over the surface of a metal sphere with a radius of 20.0 cm. If the potential is zero at a point at infinity, find the value of the potential at the following distances from the center of the sphere. (a) 48.0 cm...
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    Where Inside an Insulating Sphere is the Electric Field Zero?

    (1)I think so, the electric field inside the sphere is (kQr)/R^3 (2)E= sigma/(2epsilon_0) (3)sigma/(2epsilon_0)+(kQr)/R^3=0? got it, thank you so much!
  6. C

    Where Inside an Insulating Sphere is the Electric Field Zero?

    Homework Statement An insulating sphere with radius 0.120 m has 0.750 nC of charge uniformly distributed throughout its volume. The center of the sphere is 0.240 m above a large uniform sheet that has charge density -9.40 nC/m2. Find all points inside the sphere where the electric field is...