hi everyone,
have been given this circuit as revision for an upcoming exam, and really cant remember where too start (may just need a bit of memory jogging). its a series circuit so the '20mA' stated would be the total current? also i think that the way to work it out would be to use p=i^2/r (as 'P6) is given but is this not the total power dissipation?
i realize im a total noob on here and im sorry if i have annoyed anyone by asking for help on my first post! (will try and help others if i can)
many thanks
link to image: http://postimage.org/image/1v373e2mc/
have been given this circuit as revision for an upcoming exam, and really cant remember where too start (may just need a bit of memory jogging). its a series circuit so the '20mA' stated would be the total current? also i think that the way to work it out would be to use p=i^2/r (as 'P6) is given but is this not the total power dissipation?
i realize im a total noob on here and im sorry if i have annoyed anyone by asking for help on my first post! (will try and help others if i can)
many thanks
link to image: http://postimage.org/image/1v373e2mc/