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Solved: You find a sealed box on your doorstep. You
Chapter 22, Problem 6DQ(choose chapter or problem)
QUESTION:
Problem 6DQ
You find a sealed box on your doorstep. You suspect that the box contains several charged metal spheres packed in insulating material. How can you determine the total net charge inside the box without opening the box? Or isn’t this possible?
Questions & Answers
QUESTION:
Problem 6DQ
You find a sealed box on your doorstep. You suspect that the box contains several charged metal spheres packed in insulating material. How can you determine the total net charge inside the box without opening the box? Or isn’t this possible?
ANSWER:
Solution 6DQ
Step 1
The expression for Gauss’s law is,
Here, is the electric flux of the field, q is the charge, and is the free space permittivity.