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Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric fie

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Question: Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric field at the midpoint between the charges?

Options:

  1. 0 N/C
  2. 8.99 N/C
  3. 4.49 N/C
  4. 17.98 N/C

Correct Answer: 0 N/C

Solution: 

The electric fields due to both charges at the midpoint are equal in magnitude and opposite in direction, resulting in a net electric field of 0 N/C.

Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric fie

Practice Questions

Q1
Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric field at the midpoint between the charges?
  1. 0 N/C
  2. 8.99 N/C
  3. 4.49 N/C
  4. 17.98 N/C

Questions & Step-by-Step Solutions

Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric field at the midpoint between the charges?
  • Electric Field – The electric field is a vector field around charged particles that exerts a force on other charges placed within the field.
  • Superposition Principle – The net electric field at a point due to multiple charges is the vector sum of the electric fields due to each charge.
  • Midpoint Analysis – At the midpoint between two equal and opposite charges, the electric fields produced by each charge cancel each other out.
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