3.6 Electrical Systems notes (NCEA Level 3 Physics)

[@stephaniezhou3930]

Thank you Mr Whibley❤ Everyone all the best tomorrow!

[@byronspeir8089]

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.

[@MrWhibleyPhysics]

Cheers Byron, glad you've found them useful. Good luck in lead up to exams.

[@RookieREX]

did your class also have poor ventilation?

[@nosiebangchan]

wish i had this last year

[@Frisky_FZR]

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.

[@AnanomousRex]

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?

[@edenli6421]

Man I am so stupid for cramming this in less than 24 hours before the exam..

[@jaydenstols9983]

Literally no sleep tonight

[@s77vn]

haha same

[@tuliana.]

I feel better knowing I’m not the only one trying to cram rn

[@myla287]

same

[@Change685]

Why tf you got exams in the beginning of the year

[@AnanomousRex]

For charging and discharging inductors, the inductor voltage will both decrease. How does discharging the inductor voltage differs to charging the inductor's voltage?

[@MrWhibleyPhysics]

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.

[@andrewmatheson4887]

I love You

[@josh4869]

waves pls

[@MrWhibleyPhysics]

Couple weeks away.