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Q. 4

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 682

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Short Answer

The electric field is constant over each face of the cube shown in FIGURE EX24.4. Does the box contain positive charge, negative charge, or no charge? Explain.

The box has a negative charge.

See the step by step solution

Step by Step Solution

Step 1. Given Information

Over each face of the cube illustrated, the electric field is constant.

Step 2. Is there a positive charge, a negative charge, or no charge in the box?

According to Gauss's law ,

Here E is the electric field, A is the area, Q is the charge and is a constant

Now apply Gauss's law, to get

So, let have charge

The box has negative charge

Gauss's law for electric flux is used to determine the charge of the box.

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