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A charge of +1.00 millicoulomb is evenly sprayed over the surface of an insulating sphere of...

  1. A charge of +1.00 millicoulomb is evenly sprayed over the surface of an insulating sphere of radius 10 cm whose center is at position -1.00 m i . A point charge of

+1.00 millicoulomb is at position +1.00 m i . A point charge of -1.00 millicoulomb

is at the origin. What is the ratio of the magnitude of the electrostatic force due to the conducting sphere on the negative charge to the magnitude of the electric force due to

the positive point charge on the negative charge?

  1. What is the resultant electrostatic force on the negative point charge in (1)?

  1. What is the resultant electrostatic force on the positive point charge in (1)?

  1. What is the electric field at the center of the sphere in (1)?
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