Figure shows a circuit that contains four identical resistors with resistance R =2.0, Ω,

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7.Alternating Current

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Figure shows a circuit that contains four identical resistors with resistance $R =2.0\, \Omega,$ two identical inductors with inductance $L =2.0 \,mH$ and an ideal battery with $e m f E =9 \,V .$ The current $'i'$ just after the switch $'S'$ is closed will be .... $A$

A

$2.25$

B

$3.0$

C

$3.37$

D

$9.0$

(JEE MAIN-2021)

Solution

Just after the switch is closed, inductor will behave like infinite resistance (open circuit) so the circuit will look like

$i=\frac{9}{R+R}=\frac{9}{4}=2.25$

Standard 12

Physics

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