# Heisenberg Uncertainty Principle

Not what you're looking for?

Calculate the uncertainty in position of an electron that has been accelerated across a potential difference of 100 kV +/- 100 V.

Hints: Derive an expression for the momentum as a function of the voltage (potential difference) and differentiate. Also dV may be represented by the uncertainty in the voltage (i.e. +/- 100 volts = 200 V)

Relationship between kinetic energy and voltage : E_k = V*q

##### Purchase this Solution

##### Solution Summary

This solution includes four steps of calculations. Uncertainty in position can be found by putting the values of m, V , h and dV in the resulting expression.

##### Solution Preview

As per given problem,

Ek = V * q = 100kV * 1 = p2 / 2m,

where, m is the mass of electron and q = as one ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.