The ideal ammeter in the given circuit shown reads K Ampere. Then what is the value of K?

Feb 14, 2018 11:46 AM

Wasted 5 resistors in that shoddy design.

8 years ago | Likes 1 Dislikes 0

Do your own homework you lazy fuck.

8 years ago | Likes 14 Dislikes 1

3.14

8 years ago | Likes 3 Dislikes 0

10v / 3.33 ohms = 3.33 A. You've got 3 ten amp circuits in parallel = 3.33 ohms. the added resister is between equipotential points 1/2

8 years ago | Likes 4 Dislikes 1

Sorry, three ten OHM circuits in parallel.

8 years ago | Likes 3 Dislikes 0

10 / 3.33 = 3 !?

8 years ago | Likes 1 Dislikes 0

Just to be clear, you're using a symmetry argument to say the current on that middle wire is zero. (Flipping those two branches=no change)

8 years ago | Likes 2 Dislikes 0

Correct. It's a visual distraction, but if current through a branch is zero, so is the voltage drop through that branch.

8 years ago | Likes 2 Dislikes 0

If you don't have such a nice way to simplify the problem, you can use Kirkoff's loop and junction laws to solve this type of problem.

8 years ago | Likes 1 Dislikes 0