at 36:35 I just want to say that the voltage across point x increases it doesn't decrease because if R=V/I and R decreases voltage has to increase as well since the amount of voltage determines how much currect flows
Hey Dia, let's suppose you get a radiation of 420 in 10 secs and 20 is the background radiation and you're supposed to find the total amount of radiation emitted in 20secs. So first you subtract 20 from the initial radiation (420-20=400) and then multiply it by 2 (400*2=800) so you get radiation emitted in 20 secs. But wait you're not done yet. Where did the background radiation go? So turns out that you have to add the background radiation at last (800+20) for getting the total radiation. Hope you understood :)
at 36:35 I just want to say that the voltage across point x increases it doesn't decrease because if R=V/I and R decreases voltage has to increase as well since the amount of voltage determines how much currect flows
I really appreciate your work.I am sure there will be more likes and videos. Do solve more physics igcse past papers . Cheers
I used to not understand the videos that you make at first but your content really had improved this is so easy to understand
extremely helpful, in 2 hourls have my igcese
thx for this video
ok kid i hope you fail lol
in q3 b) isn't force= mass * accelaration
This is one of the best videos to be honest
Really appreciate your efforts thank you so much
Hi sir i have a doubt, why do we minus 20 from 220 in the last question, cant we just divide 220 by 2?
Is it necessary to round our answrs if they havent told us to do so?
If no specific instruction in a question then follow main instructions on first page.
for the 10th question , shouldnt kt be voltage increasing because thats what ms says
V = I R (V is proportional to I). So when voltage increases I increases. Therefore lamp as more current. Hope it's clear now.
@@scienceandmathpapers but for that R needs to be constant
FORCE = mass * velocity, bro making new formula to match ms answers. DUH
thanks sir jee
ay essa hishaam here lmao
hello could you also do paper 62 may june 2019 and 2021
Hi sir why did u add the 20 in the last question
Hey Dia, let's suppose you get a radiation of 420 in 10 secs and 20 is the background radiation and you're supposed to find the total amount of radiation emitted in 20secs. So first you subtract 20 from the initial radiation (420-20=400) and then multiply it by 2 (400*2=800) so you get radiation emitted in 20 secs. But wait you're not done yet. Where did the background radiation go? So turns out that you have to add the background radiation at last (800+20) for getting the total radiation. Hope you understood :)
@@scienceandmathpapers yep 👍