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Q. 18

Expert-verified
Found in: Page 624

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

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

The total electric force on charge,

See the 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.