question_answer

Figure shows a circuit contains three identical resistors with resistance \[R=9.0\,\,\Omega \] each, two identical inductors with inductance \[L=2.0\text{ }mH\] each, and an ideal battery with emf \[\varepsilon =18\,V\]. The current \['i'\] through the battery just after the switch closed is                                                                       [NEET-2017]

A)  0 ampere         

B)       2 mA

C)  0.2 A  

D)       2 A

Correct Answer: D

Solution :

[d]

At \[t=0,\] no current flows through \[{{R}_{1}}\] and \[{{R}_{3}}\]

\[i=\frac{\varepsilon }{{{R}_{2}}}\]

\[i=\frac{\varepsilon }{{{R}_{2}}}\]

\[=2A\]

Note:    Not correctly framed but the best option out of given is .