Hello Mr Whibley Do you know the 2 equations on the formulae sheet which are I=Imax sinwt and V=Vmaxsinwt ? Would problems come up that involves using these 2 equations? It's strange because I've been through all the past papers and I haven't used these 2 equations?
4 weeks till my exams need to pass electricity and waves to pass L3 physics lol. Was one question away from passing the electricity practice test and a few away from getting merit on waves but not feeling as confident now lol.
For charging and discharging inductors, the inductor voltage will both decrease. How does discharging the inductor voltage differs to charging the inductor's voltage?
Excellent question. The inductor voltage opposes the change in current, if the current increases the voltage will oppose this increase, if the current decreases the voltage will oppose this decrease. This means that the charging inductor voltage will be in opposite direction to the discharging inductor voltage.
Thank you Mr Whibley❤ Everyone all the best tomorrow!
You are saving my life right now. A month of falling asleep in class can't compare to a few hours of studying this video. Thank you so much.
Cheers Byron, glad you've found them useful. Good luck in lead up to exams.
did your class also have poor ventilation?
Hello Mr Whibley Do you know the 2 equations on the formulae sheet which are I=Imax sinwt and V=Vmaxsinwt ? Would problems come up that involves using these 2 equations? It's strange because I've been through all the past papers and I haven't used these 2 equations?
for e = qv = cv^2 , when do we use each formula? or can we use either formula whenever? thank you :)
Hi Estella, either works. The one you choose will depend on which quantities you're given.
wish i had this last year
Man I am so stupid for cramming this in less than 24 hours before the exam..
Literally no sleep tonight
haha same
I feel better knowing I’m not the only one trying to cram rn
same
Why tf you got exams in the beginning of the year
4 weeks till my exams need to pass electricity and waves to pass L3 physics lol. Was one question away from passing the electricity practice test and a few away from getting merit on waves but not feeling as confident now lol.
For charging and discharging inductors, the inductor voltage will both decrease. How does discharging the inductor voltage differs to charging the inductor's voltage?
Excellent question. The inductor voltage opposes the change in current, if the current increases the voltage will oppose this increase, if the current decreases the voltage will oppose this decrease. This means that the charging inductor voltage will be in opposite direction to the discharging inductor voltage.
I love You
waves pls
Couple weeks away.