ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Expressions and Equations Videos 19 videos
In this GED Math Equation, figure out how far Dmitri has travelled in his sleigh ride down the hill.
Pick the expression that best represents the cost in dollars of riding m miles in a taxi.
GED Math 3.1 Expression and Equations 228 Views
Share It!
Description:
GED Math 3.1 Expression and Equations. What is the maximum output impedance that the amplifiers can have?
Transcript
- 00:03
Here's your Shmoop dujour, brought to you by audio equipment for dogs.
- 00:09
They're generally most interested in woofers.
- 00:34
What is this question really asking?
- 00:36
We're told that the output impedance of the amplifier should be 1/8 or less of the speakers.
- 00:42
The speakers have an impedance of 6 ohms. What's 1/8 of 6?
Full Transcript
- 00:47
We can get that without knowing what impedance is or what ohms are.
- 00:59
A lot of times these questions will throw curveballs at you with these fancy terms you don't need to know. Just do the math.
- 01:06
Because want to know the maximum output, this has got to be the upper limit.
- 01:11
Since we want this answer in the form of an actual number of ohms (i.e. a decimal) rather than a fraction,
- 01:16
we just take six divided by eight or take a simplified version of 3/4.
- 01:29
Ohm sweet ohm.
Related Videos
GED Math 1.1 Graphs and Functions. Which is the appropriate region of the coordinate plane?
GED Math: Expression and Equations Drill 1, Problem 1. How much do the apples cost after tax?
GED Math: Graphs and Functions Drill 5, Problem 5. What is the value of a?
GED Math: Measurement Drill 1, Problem 1. The area, in square inches, of the shaded region where the two rectangles overlap is...what?
Mosquitos need their caffeine, just like the rest of us. Wouldn't think zipping around and stinging people all day long sap your energy?