The effect of closing the key K in the circuit shown in the figure above would be to?
When K is open. Total Resistance = 8 + 2 = 10Ω
1 = VΩ = 6vΩ = 0.6A
Where K is closed, 18+18=1Ω
28=1Ω
Ω = 82 = 4Ω
4Ω in series with 2Ω= 6Ω
1 = VΩ = 66 = 1A
1 - 0.6A = 0.4A increase