Question

The circuit in the figure has 5 resistors and 2 ideal batteries. What is the magnitude of the current in the 4-ohm resistor?

Answer 1

(a) 1.7 A
(b) 1.1 A
(c) 4.0 A
(d) 1.3 A
(e) 2.8 A

Answer 2

Are you sure of your values? I find 1,52 A.

Answer 3

Yes, this is the answers that I should choose one of them. So yeah I am pretty sure.

Answer 4

Well, I tried 2 different methods. Both lead to 129/85 = 1.5176 A

Answer 5

i am getting 1.31

Answer 6

i used kirchoff's loop rules and got 21/16=1.31A

Answer 7

@benanderson5900 do you want me to explain?

Answer 8

Watch this:

Answer 9

Yes @Siddharth18 if possible, I need explanation please!

Answer 10

@Vincent-Lyon.Fr I have checked it out but I just don't know why the result is not any of the answers given.

Answer 11

People who write problems do also make errors sometimes ;-)

Answer 12

i suggest its a good idea to reward peple who have helped u

Answer 13

@AravindG Actually I am new to this site and don't know how can I reward. Anyway I would love to do so :)

Answer 14

well click on the button best answer to the answer which helped u most

Answer 15

Ok thanks

Answer 16

well u now have three loops,so u'll get three equation and u have three unknowns(i1,i2,i3).
try to frame the equations of the loops and find the unknowns.