Why can't a uniform electric field be described by E=\frac{kq}{r^2}?

In summary, a uniform electric field is a constant and evenly spaced electric field that exerts a uniform force on charged particles. It is created by placing two parallel charged plates with opposite charges next to each other. The properties of a uniform electric field include a constant magnitude and direction, parallel electric field lines, and a strength that is directly proportional to the voltage and inversely proportional to the distance between plates. The electric field strength in a uniform electric field can be measured using a voltmeter and ruler, and it has practical applications in various fields including capacitors, particle accelerators, and medical devices.
  • #1
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This is not a homework question, but I was just wondering, why can't a uniform electric field be described by the formula [tex]E=\frac{kq}{r^2}[/tex] ?
 
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  • #2
When we have to case of a uniform electric field, it means that the field is constant in a region of space. In the definition of the above electric field, what happens to the electric field as r increases and decreases.
 
  • #3
Ok thanks I got it.
 

1. What is a uniform electric field?

A uniform electric field is a type of electric field where the magnitude and direction of the electric field are constant throughout the field. This means that the electric field lines are parallel and evenly spaced, creating a uniform force on any charged particles within the field.

2. How is a uniform electric field created?

A uniform electric field can be created by placing two parallel charged plates with opposite charges next to each other. The electric field between the plates will be uniform as long as the plates are large enough and the distance between them is small compared to their size.

3. What are the properties of a uniform electric field?

A uniform electric field has a constant magnitude and direction, and the electric field lines are parallel and evenly spaced. The electric field strength is directly proportional to the voltage between the plates and inversely proportional to the distance between them.

4. How is the electric field strength measured in a uniform electric field?

The electric field strength in a uniform electric field can be measured using a voltmeter and a ruler. The distance between the plates (d) and the voltage (V) are measured, and then the electric field strength (E) can be calculated using the formula E = V/d.

5. What are the applications of a uniform electric field?

Uniform electric fields have many practical applications, such as in capacitors, particle accelerators, and electronic devices. They are also used in experiments to study the behavior of charged particles and in medical devices such as defibrillators.

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