Electricity Grade 11 and 12: Exam

Electricity Grade 11 and 12: Exam

[menzisaclown]

I enjoyed this question, very challenging. Good show

[makopoletshegofatsomaeleba]

Theres no better feeling than getting the answer right

[hannahmboya]

If the 11.9voltage is the external can I not just say that R(the unknown resistor)= 11.9 - the resistors in parallel? Or am I obligated to use the formula V=IR

[thando_tlng]

Sir where is it given that the int voltage is 0, 1 v ?

[Hair-crazed_baddy]

Hi Kevin 😊
Quick question, it seems to me there are 2 equations when doing these related calculations... V=I/R and V=I*R.
I would really like to know which one do I use in which situation.
Will be waiting on your reply. Thx👍

[Thurhkay]

how did you do, you have 12emf=0, 5(R+0, 2) then you ended up getting 24 how?