Kahwai's answer to Alvin's Junior College 1 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Kahwai
Kahwai's answer
232 answers (A Helpful Person)
During the journey you will find that thickness is redundant

Find R expressed in V as constant

Find H expressed in V as constant

Both happen to be the same

Then put V=1000, R and H is the answer