Susan Brown

[Susan Brown]

Vimeo (our video host) was having issues as of 11:06 am EDT. They usually resolve things like this quickly.
I was able to get some videos to load just now. Tip: It’s always good to clear your cache before trying to reload when there’s been a glitch like this.
Sorry for the disruption!
Susan

[Susan Brown]

Don’t worry about that now. You’ll learn a lot more about that in Module 3!

[Susan Brown]

Correct!

[Susan Brown]

Hi Denis,

Question 4
The answer choices are:
gold
aluminum
glass

Which of those do you think would make the least good (in other words, worst) conductor?

Question 14
The answer choices are:
1. It is the voltage difference related to a load that is actively doing work
2. It is the difference between the voltage used by a load and the source voltage
3. It is the difference between what the voltage supply is supposed to be and what is actually measured

Which is the definition of voltage drop?

[Susan Brown]

Glad to hear it!

[Susan Brown]

Were you able to get the videos to play?

[Susan Brown]

Hi Walt – did you received the email I sent you with feedback?

[Susan Brown]

Hi Robert,

I just checked and the videos played for me, so this must be on your end. The thing that usually clears up an issue like this is to log out and refresh your system – clear your cache, start with a fresh browser window.

If that doesn’t fix it, let me know!
~ Susan

[Susan Brown]

Dee – did that fix the issue with the videos playing for you?

[Susan Brown]

Ah! That explains it!

[Susan Brown]

One way to help you remember this is to recall that a compressor is a “vapor pump”.

From unit 5:
The condenser is a lot like the evaporator in that it’s a long, narrow tube coiled up into a small, compact space. The big difference is that the condenser tubing is a lot smaller in diameter than the evaporator, creating a high pressure environment for the refrigerant.

Compressed into the condenser by the compressor, the refrigerant’s boiling point is raised but it also heats up, which means it remains a gas at first.

In other words, it exits the compressor as a gas. (So the question is one of our infamous “trick” questions!)

We also mentioned this in Unit 2, if you want to review the first minute or so of that video.

• This reply was modified 2 months ago by Susan Brown.

[Susan Brown]

Hi Dee,
I just checked and the videos played for me, so this must be on your end. The thing that usually clears up an issue like this is to log out and refresh your system – clear your cache, start with a fresh browser window.

If that doesn’t fix it, let me know!
~ Susan

[Susan Brown]

4 Mega-watts is equal to: 0.004 Giga-watts

[Susan Brown]

😀

[Susan Brown]

Hi Jonathan,

I’ll see if I can lead you to the correct answers for the first two.

Select the true statement about voltage in parallel circuits:
The correct answer choice has to do with voltage. When you have parallel circuits, do they each have the same voltage supply/drop or different?

In parallel circuits, if one of the branches goes open the TOTAL circuit current ___.
In the first video we point out that the total current in the circuits equals the sum of the current through each parallel branch. If one branch goes to zero, but the others stay the same, what happens to the total?

Question #9 – The neutral connector in the circuit breaker box creates an area of
The answer is “Low electrical pressure, or voltage, which completes the circuit and causes electrons to flow”
Remember that to have current flow we need a difference in electrical pressure or charge, also known as voltage. The neutral provides an area of low pressure (ground potential) as a contrast to the Line potential, which is high.

Question #12 – A ground fault is
In the lesson we wrote:
If the current flowing into the circuit differs by a very small amount (as little as 0.006 amperes) from the returning current, the GFCI interrupts power faster than a blink of an eye to prevent a lethal dose of electricity.
So – of the answer choices we gave you – “an A current imbalance between line and neutral.” is what we were looking for.

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