Susan Brown

[Susan Brown]

Good! I just sent you an email

[Susan Brown]

A fuse is a switch which doesn’t do work so there is no voltage drop across it right? Disregard my other answer unless I am wrong here but I believe I am right

That’s it!

[Susan Brown]

That’s right.

In this question, we say,

For the light to be on, what is the correct voltage drop across the fuse?

So, we know the fuse hasn’t blown open, since the light is on. Is it currently doing work?

[Susan Brown]

Loads do some kind of work when current flows through them – produce heat, motion, light, etc. What does a fuse do?

[Susan Brown]

Is this question talking about resistance?

Yep!

[Susan Brown]

Do you remember the two questions we told you to ask when you are considering the function of a component on a schematic? “Is it a _____ or a _____?”

What’s the function of a fuse?

[Susan Brown]

Yep! It’s such a cool phenomenon – electric current being able to induce a magnetic field, which can make things move!

[Susan Brown]

Hi Duane,

You wrote:

Question: I am trying to relate refrigerator frost patterns to home refrigeration unit frost patterns (maybe too different to compare?).

From the rest of your question, I assume you’re trying to relate refrigerator frost patterns to those on A/C units?

[Susan Brown]

No, alternating current is just electrons movement that changes polarity (direction) over time, rather than always going in one direction.

Here are a couple of items of note in the transformer unit:

A transformer basically is a very simple static (or stationary) electro-magnetic passive electrical device

When an electric current is passed through the primary winding, a magnetic field is developed which induces a voltage into the secondary winding

[Susan Brown]

It’s first described in the Transformers unit (Module 4)

https://my.mastersamuraitech.com/module-4/basic-electronics-transformers/

There’s one word that can be used for the answer.

Let me know if you figure it out!

[Susan Brown]

Good question!
The Midterm exam, as you experienced, is pretty challenging. It requires really stepping up your game after just taking the multiple choice quizzes. That’s why we created that study sheet.

The Final exam is not quite as challenging in that way. It is largely based on the quiz questions that you encountered through the course. The biggest difference is when you get to the Open Answer exam and have to write definitions and do a few calculations on your own. The final exam has a higher first-attempt passing rate than the Midterm, if that helps you feel better! But you still do have two attempts.

So the best way to study is to review each unit and quiz, to refresh your memory. If you’ve been keeping a notebook, that will help as well.

[Susan Brown]

Those are correct – good job! (Note – I’m going to hide the answers so we don’t give them away)

[Susan Brown]

The water level info is still transmitted to the main PCB (you can see that clearly when you look at the photo of the board), but because it first goes through the sub PCB, it is a little ambiguous as to what constitutes “direct input”. So we’ve decided to remove that as an answer choice to avoid confusion.

[Susan Brown]

I understand which ever side you get zero is where your problem is

Yep! 🙂

[Susan Brown]

You are all set now! I just sent you an email.

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