Question (1 Viewer)

[highshill]

In this link
http://yr11.web.fc2.com/test/physics/ElecticalEnergyintheHomeExam_Solutions.pdf
I don't get question 10 and question 12 and in question 9 especially the fact that why in part b the answer is 8 V isn't it 12 V as parallel circuits have the same voltage
Thanks

 

[braintic]

Do you know how to add resistances in series and in parallel?

 

[highshill]

yup

 

[braintic]

Then I don't understand the issue.