Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | Physics
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Cynthia
Cynthia

secondary 4 chevron_right Physics

How to do question 2a?

Date Posted: 7 years ago
Views: 557

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
GUO ZIMING
Guo Ziming's answer
5 answers (Tutor Details)
1st
from the supply voltage and resistance, you can get current flowing in the circuit I=V/R, after that you can use your equatiob p=V*I to get the power