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Q. 18

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 624

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Short Answer

What is the net electric force on charge B in FIGURE?

The total electric force on charge,

See the step by step solution

Step by Step Solution

Step1: Charge on  and 

When two charged particles, one with charge and also the other with charge , are separated by a distance , they exert forces on one other, with the force decreasing because the magnitude of the cost increases. This force is described by Coulomb's law, which is provided by equation.

is that the electrostatic constant, which is capable . determines the charge of every sphere. by converting the unit to coulomb.

Step2: The magnitude of the electrical force of  on 

Each of and 's spheres has an attraction force on . Now we use the numbers for , , , and to calculate the magnitude of electrical force on and .

Step3: Find the whole force

We also use the numbers for , , , and to calculate the magnitude of 's electric force on .

due to two spheres and , the force on is

Because the magnitude of the force on the sphere is greater than that on the sphere , the force is directed forward.

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