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A small spherical insulator of mass 1.90 10-2 kg and charge +0.600 µC is hung by a thin wire of negligible mass. A charge of −0.900 µC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes an angle è with the vertical.

Find the angle è.

Find the tension in the wire

  • physics -

    Again, as above, the horzontal electric force is equal to mg*tanTheta.
    Tension= mg*cosTheta
    Draw the force diagram to demonstrate this.

  • physics -

    tension = mg/ cosTheta

  • physics -


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