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 __________.

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

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: