Electric Potential: x,y,z Components & Zero Points

In summary, to calculate the electric field in a certain region of space with the given electric potential equation, we can use the relationship E = -∇V. To find the x, y, and z components, we can take the derivative of V with respect to each variable, using A, B, C, x, y, and z as necessary. The electric field will be equal to zero at the points where the potential is zero.
  • #1
sbe07phy
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Homework Statement



a) In a certain region of space, the electric potential is V(x,y,z) = Axy - Bx^5 + Cy where A, B, and C are positive constants. Calculate the x, y , and z components of the electric field. Use A, B, C, x, y, and z as necessary
b) At which points is the electric field equal to zero.

Any help?

Homework Equations





The Attempt at a Solution

 
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  • #2
What can't you do? It's hard to help if you don't say what's actually holding you back. Do you know how to calculate the electric field from the potential?
 
  • #3
How to get started. Do I just solve for each variable with that equation?
 
  • #4
The equation for getting the electric field from the potential is [tex]\mathbf{E} = \boldsymbol{\nabla}V[/tex]. Did you already know that?
 
  • #5
Allow me to expand on what genneth started..

he is correct...E= - Del V
where del is the gradiate operator.
You have V in cartesian.

so del V = x(hat)*dV/dx+y(hat)*dV/dy+z(hat)*dV/dz
You textbook should give the relationship for del V, don't forget the negative sign.

So take the derivate of V with respect to x, then repeat for y and z.

This should get you going. If I am wrong, I apologize, but that is how I did a similar problem in my homework.
 

FAQ: Electric Potential: x,y,z Components & Zero Points

What is electric potential?

Electric potential is the amount of work required to move a unit of positive charge from one point to another in an electric field. It is measured in volts (V).

What are the x, y, and z components of electric potential?

The x, y, and z components of electric potential refer to the three-dimensional coordinates in which the electric potential is measured. These components represent the electric potential at a specific point in space in the x, y, and z directions.

What is the significance of zero points in electric potential?

Zero points in electric potential refer to the points in space where the electric potential is zero. These points are important because they represent the points where there is no net force acting on a charge, and therefore the charge will not experience any movement in these locations.

How is electric potential calculated?

Electric potential is calculated by dividing the work done in moving a charge from one point to another by the magnitude of the charge. Mathematically, it is represented as V = W/q, where V is the electric potential, W is the work done, and q is the charge.

How is electric potential related to electric field?

Electric potential and electric field are closely related, as electric potential is the measure of the electric field's strength at a specific point in space. The electric field is the force per unit charge, while the electric potential is the amount of work per unit charge needed to move that charge. Mathematically, this relationship is represented as E = -∇V, where E is the electric field, V is the electric potential, and ∇ is the gradient operator.

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