Potential energy:

$\overline{){\mathbf{\u2206}}{\mathbf{U}}{\mathbf{=}}{\mathbf{q}}{\mathbf{\xb7}}{\mathbf{\u2206}}{\mathbf{V}}}$

Consider two points in an electric field. The potential at point 1, V_{1}, is 31 V. The potential at point 2, V_{2}, is 168 V. An electron at rest at point 1 is accelerated by the electric field to point 2.

Part (a) Write an equation for the change of electric potential energy ΔU of the electron in terms of the symbols give.

Expression:

ΔU = ________

Select from the variables below to write your expression. Note that all variables may not be required.

α, β, ΔU, θ, d, e, g, h, I, m, m_{e}, P, t, V_{1}, V_{2}

Part (b) Find the numerical value of the change of the electrical potential energy in electron volts (eV).

Numeric: A numeric value is expected and not an expression

ΔU = __________

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Relationships Between Force, Field, Energy, Potential concept. You can view video lessons to learn Relationships Between Force, Field, Energy, Potential. Or if you need more Relationships Between Force, Field, Energy, Potential practice, you can also practice Relationships Between Force, Field, Energy, Potential practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Fry's class at TAMU.