http://s801.photobucket.com/albums/yy293/tracccccccccy/?action=view¤t=physicscircuit.jpg
true or false for the following statements
Pls explain.
1. as R=0Ω, P given out by the cell is max.
2. as R=5Ω, P dissipated by R is max.
3. as R=25Ω, power consumed by the light bulb is max.
especially for q.2, it should be false, but i dun know why R is max when R=25
THX=]