7.02 Quiz: Electric Force

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An object with a charge of +6.0 µC is 0.30 m from a second object and experiences an attractive force of 1.80 N. What is the magnitude of the charge on the second object?

-3.0 μC

Two identical objects each with a charge of +3.0 µC experience a repulsive force of +0.90 N between them. How far apart are the objects?

0.30 m

How many coulombs could be in a lightning bolt?

5.0 x 10^0 C

Object A experiences an attractive force of 50 N when it comes close to Object B. If Object A is positively charged, what can you say about Object B?

Object B is negatively charged.

If you charge a comb by rubbing it against fur and place it near scrap bits of paper, what will happen?

The comb will attract the bits of paper by charge polarization.

Positively charged Object A is brought close to neutral Object B but does not touch it. The two objects begin to attract each other. What is this process called?

charge polarization


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