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QNEET-2017-Ph-976: NEET 2017 Physics - Class 12 NEET-2017-Ph-976 Solution: Figure shows a circuit that contains three identical resistors…
Figure shows a circuit that contains three identical resistors with resistance each two identical inductors with inductance each and an ideal battery with emf . The current i through the battery just after the switch closed is 0.2 A 4 A 0 ampere 2 mA
Multiple Choice Options
- A 0.2 A
- B 4A
- C 0 ampere
- D 2 mA
Step-by-Step Verified Solution
At t = 0, there will be no current flowing through an inductor as it resists the change in current, whereas current will slowly build in it. Also, as switch is closed, inductor will give an infinite resistance where capacitor shows zero resistance, so, current through battery, will be
I = E ( R / 2 ) = 2 E R = 2 _ 18 9 = 4 A