Question

What is current of 12 ohm? help me pleasee

1. 0.25 A
2. 0.5 A
3. 1 A
4. 1.5 A
5. 2 A​
please show solution.

Answer 1

=> The square on top is 6 in parallel with 3. That's 2 ohms.
=> Now across the top we have 2 in series with 1. That's 3 ohms across the top.
=> Now, around the outside, we have the battery and 3 ohms in series with the 12 ohmer. That's 30 volts across 15 ohms. The current all around is (30/15)= 2 Amps. (Choice #5.)

Answer 2

the current is 5.2 Amps