Denis Carey

[Denis Carey]

Okay.. Thanks for that.

[Denis Carey]

Hi Susan..

I thought about question again.. It was my fault I did not get it..

I used an extension lead, I did not open the lead out fully.

I had around 100cm length of lead plugged into the extension lead.. with spades on the end of it, to put on the element.

The spades was where I had 235v..

When the spades were on the element I had 228v with the working load.

Thanks for your help. Denis.

[Denis Carey]

Thanks for your reply and explanation of what could have happened..

I measured the 235v with a fluke clamp meter..

I did not know about Loz at that time.

Thanks again.

Denis.

[Denis Carey]

Hi Susan..
Sorry my mistake, in unit 4, second video 7 minutes in..

You said, That is the power supply, there will not be any unused voltage, if you only have one load in the circuit, the voltage drop will equal the voltage supply to it.

The voltage drop of the 40-ohm load is 48v.. I can see that the 48 + 72v = 120v.

When I done my test a few months ago, i had power supply of 235v.

I had an element 24-oms, with 9.5a, and when I put my meter across the element it was 228v..
This was where i was a bit confused at the time, there was a difference of 7v between supply voltage 235v and the voltage across the load 228v..
Sorry if I am making things difficult.. Thanks for your help.

[Denis Carey]

Hi Susan..

Thank you for your informative reply..

I remember doing a test on a ring before, checking voltage supply..

Then checking the voltage across the load with the same voltage supply to a heating element and every time I checked it, it dropped a few volts.

I think you were saying before that there would be no voltage drop when there is only one load in the circuit.

Should I have been getting the same voltage in the test on the ring as the voltage supply.

I know if I do ask it, I might be wondering about it down the road..

Thanks for you help.

Denis.

[Denis Carey]

Hi Susan,

Thanks for your reply.. That is fine.

Thanks again.

Denis.

[Denis Carey]

Hi Susan..

The answer to question 4. is glass.

The answer to question 14. is choice 1. It is the voltage difference related to a load that is actively doing work.

Kind Regards.
Denis.

[Denis Carey]

Okay Susan..

Thanks very much for that.

[Denis Carey]

Okay Susan.. Thanks for that.

[Denis Carey]

Okay Susan.. Thanks for that.

[Denis Carey]

Dear teacher, In Basic Electricity, Module 4, Unit 10..

I was just wondering about joining wires in the fridge.
Would solderless connectors be easier to use than a barrel, as they would seal the joint.
With the barrel we have to be trying to seal it with silicon.
Thanks for your help.
Denis

[Denis Carey]

Okay Scott.. Thanks for that.

[Denis Carey]

Hi Susan, It’s in the reading assignment in the Kleinert text, page 249..

Table 10-1 standard wire-gauge sizes for copper wire..

Just the sizes I don’t understand..

Thanks Denis.

[Denis Carey]

Okay Susan.. Thanks very much for that.

[Denis Carey]

Hi Susan, Thanks for your reply, it does help, just wondering do you know if it’s the same over in Ireland..

We have 240vac with live neutral and earth..

We don’t have 120vac, do you know do the same rules apply here with the neutral at 0 pot vac..

Thanks.

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