Find electric field strength expression for a specfic region

Thread starter jlmccart03
Start date Feb 8, 2017
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Electric Electric field Electric field strength Expression Field Field strength Physics Sphere Strength

In summary: I think you're still getting tripped up by the volume calculation. I would expect the result to involve cubes in the numerator and a square in the denominator (corresponding to volume in the numerator as part of the calculation of the enclosed charge, and area in the denominator for the area of the...shell?).

Feb 8, 2017

gneill

Mentor

You're welcome

<h2>1) What is the formula for calculating electric field strength in a specific region?</h2><p>The formula for calculating electric field strength in a specific region is E = kq/r^2, where E is the electric field strength, k is the Coulomb's constant, q is the charge of the source, and r is the distance from the source.</p><h2>2) How does the shape of the region affect the electric field strength?</h2><p>The shape of the region can affect the electric field strength by changing the distribution of charges and altering the distance between the source and the point where the field is being measured. This can impact the value of r in the formula and ultimately change the magnitude of the electric field strength.</p><h2>3) Can the electric field strength in a specific region be negative?</h2><p>Yes, the electric field strength in a specific region can be negative. This indicates that the direction of the electric field is opposite to the direction of the force experienced by a positive test charge placed in that region. It is important to note that the magnitude of the electric field strength is always positive.</p><h2>4) How does the presence of multiple sources affect the electric field strength in a specific region?</h2><p>The presence of multiple sources can affect the electric field strength in a specific region by adding or subtracting their individual contributions. If the sources have the same charge, their electric fields will add up and result in a stronger field. If the sources have opposite charges, their electric fields will subtract and result in a weaker field.</p><h2>5) What factors can cause the electric field strength in a specific region to change?</h2><p>The electric field strength in a specific region can change due to changes in the charge of the source, changes in the distance between the source and the point where the field is being measured, and changes in the medium between the source and the point. Additionally, the presence of other charges or sources in the vicinity can also affect the electric field strength in a specific region.</p>

FAQ: Find electric field strength expression for a specfic region

1) What is the formula for calculating electric field strength in a specific region?

The formula for calculating electric field strength in a specific region is E = kq/r^2, where E is the electric field strength, k is the Coulomb's constant, q is the charge of the source, and r is the distance from the source.

2) How does the shape of the region affect the electric field strength?

The shape of the region can affect the electric field strength by changing the distribution of charges and altering the distance between the source and the point where the field is being measured. This can impact the value of r in the formula and ultimately change the magnitude of the electric field strength.

3) Can the electric field strength in a specific region be negative?

Yes, the electric field strength in a specific region can be negative. This indicates that the direction of the electric field is opposite to the direction of the force experienced by a positive test charge placed in that region. It is important to note that the magnitude of the electric field strength is always positive.

4) How does the presence of multiple sources affect the electric field strength in a specific region?

The presence of multiple sources can affect the electric field strength in a specific region by adding or subtracting their individual contributions. If the sources have the same charge, their electric fields will add up and result in a stronger field. If the sources have opposite charges, their electric fields will subtract and result in a weaker field.

5) What factors can cause the electric field strength in a specific region to change?

The electric field strength in a specific region can change due to changes in the charge of the source, changes in the distance between the source and the point where the field is being measured, and changes in the medium between the source and the point. Additionally, the presence of other charges or sources in the vicinity can also affect the electric field strength in a specific region.