Question 112: AC fundamentals

Question

For the given circuit the current i through the battery when the key in closed and the steady state has been reached is __________.
![](https://app-content.cdn.examgoal.net/fly/@width/image/1kwor1im5/794eed9c-f782-428f-9af8-a771c3b38a15/50b442d0-5351-11ec-9cbb-695a838b20fb/file-1kwor1im6.png?format=png)

Accepted Answer

We know in study state potential difference across
inductor = 0
So, equivalent circuit becomes
${1 \over {{R_{eq}}}} = {1 \over 3} + {1 \over 3} + {1 \over 3} = 1$
$\Rightarrow$ R
eq
= 1$\Omega$
$\Rightarrow$ Circuit becomes
$ \Rightarrow i = {{30} \over 3} = 10$ A
![](['https://app-content.cdn.examgoal.net/fly/@width/image/1kwor2wlu/77e82b37-ad3f-485c-ab27-e4568b9c7c40/77524720-5351-11ec-9cbb-695a838b20fb/file-1kwor2wlv.png?format=png', 'https://app-content.cdn.examgoal.net/fly/@width/image/1kwor41hv/a124b030-6b0c-4284-abff-c52891825158/96e88540-5351-11ec-9cbb-695a838b20fb/file-1kwor41hw.png?format=png'])

Answer

6 A

Answer

25 A

Answer

10 A

Answer

0 A

AC fundamentals

For the given circuit the current i through the battery when the key in closed and the steady state has been reached is __________.

Choose the correct answer: