Anonymous asked in Science & MathematicsPhysics · 1 month ago

charging rods?

A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is attracted to the rod we can conclude:

a) The object is positively charged

b) The object is negatively charged

c) The object is an uncharged insulator

d) The object is an uncharged conductor

e) Both B and D are possible

1 Answer

  • 1 month ago

    A is false, they would be repelled

    B is true

    C is false

    D is true, the positive charged rod would repel +charges on the conductor to the back of it (that is, attract negative charges). leaving negative charge on the nearest surface, and they would be attracted. 

    however, C would be true to some extent, depending on the materials. No material is a perfect insulator.

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