Purchase Solution

Electromotive Force : Minimizing Time

Not what you're looking for?

Ask Custom Question

For an electric circuit, let V=cos 2pi(t) model the electromotive force in volts at t seconds.
find smallest positive value of t where 0<and= to t<and= to 1/2 for the values
a) V=0
b) V=.5
c) V=.25

Purchase this Solution

Solution Summary

Minimum time is linked to voltage in this electromotive force problem.

Solution Preview

a) sub to get 0 = cos(2pi*t)
but we know that cos is 0 at pi/2 hence
2pi*t = pi/2
t = ...

Purchase this Solution

Free BrainMass Quizzes
Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Probability Quiz

Some questions on probability

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.