Question 230: AC fundamentals

Question

Consider an electrical circuit containing a two way switch 'S'. Initially S is open and then T
1
is connected to T
2
. As the current in R = 6$$\Omega$$ attains a maximum value of steady state level, T
1
is disconnected from T
2
and immediately connected to T
3
. Potential drop across r = 3$$\Omega$$ resistor immediately after T
1
is connected to T
3
is __________ V. (Round off to the Nearest Integer)

Accepted Answer

What T
1
and T
2
are connected, then the steady state current in the inductor $$I = {6 \over 6} = 1A$$
When T
1
and T
3
are connected then current through inductor remains same. So potential difference across 3$$\Omega$$
V = Ir = 1 $$	imes$$ 3 = 3 Volt

AC fundamentals

Integer / Numeric Answer Type