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Q. 38

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 711

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Short Answer

A -10.0 nC point charge and a +20.0 nC point charge are 15.0 cm apart on the x-axis. a. What is the electric potential at the point on the x-axis where the electric field is zero? b. What is the magnitude of the electric field at the point on the x-axis, between the charges, where the electric potential is zero?

The electric potential at the x-axis point is 103 V

The magnitude of the electric field at the x-axis point is

See the step by step solution

Step by Step Solution

Step 1: The theory of  electric potential  

As the equation of the electric field of a point is

As

The electric potential value

Step 2: Definition of The magnitude of the electric field 

As per the figure

Applying all values in the above equation

Applying the value of ,

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