Design help level 3. Finding length

[eddy33]

Hi guys, I'm struggling with working out the length to fill In the gaps for my upcoming exam.

I'm struggling with finding the length as I don't have or know the correct formula to use.

The yellow highlighted areas will be blank in my actual exam.

For example circuit 2 cable length is 12m and I've spent last few days trying to figure it out to no avail.

Any advice would be greatly appreciated.

 

[Rebwar]

Hi guys, I'm struggling with working out the length to fill In the gaps for my upcoming exam.

I'm struggling with finding the length as I don't have or know the correct formula to use.

The yellow highlighted areas will be blank in my actual exam.

For example circuit 2 cable length is 12m and I've spent last few days trying to figure it out to no avail.

Any advice would be greatly appreciated.View attachment 106133

Measure the point location on the project by a ruler and then multiple it to 50, then divide to 100, the amount is by metre.

Ex: the light points from DB is 30cm,
So 30×50÷100= 15m