ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: BAH0003 on April 26, 2019, 07:23:39 pm

Hi,
I just needed help with this question and if anyone can explain it with working out that would be great.
Question: A potential difference of 240V is used to generate a current of 5A to heat water for 3 minutes. Calculate the energy transferred to the water in that time?
Thanks

Hi,
I just needed help with this question and if anyone can explain it with working out that would be great.
Question: A potential difference of 240V is used to generate a current of 5A to heat water for 3 minutes. Calculate the energy transferred to the water in that time?
Thanks
(https://i.imgur.com/gf5J5eF.jpg)
Hope this helps! I subbed the numbers into the power and energy formulas. And remember to convert time to seconds! Also you could probably just do it in one step using P=IVt.
:)