29-10-12, 09:24 PM
Apologies for being a pedant, but...
a) 4 x 220Ω resistors in parallel give an equivalent resistance of 55Ω,
and
b) 2 x 82Ω resistors in parallel give an equivalent resistance of 41Ω.
So ignoring forward voltage drop across diodes,
a) gives a current of 165mA and
b) gives a current of 219mA
I'm obviously missing summat here....
H
a) 4 x 220Ω resistors in parallel give an equivalent resistance of 55Ω,
and
b) 2 x 82Ω resistors in parallel give an equivalent resistance of 41Ω.
So ignoring forward voltage drop across diodes,
a) gives a current of 165mA and
b) gives a current of 219mA
I'm obviously missing summat here....
H