please show work 7. For the circuit shown in the figure, the inductors have no a

Question

please show work

7. For the circuit shown in the figure, the inductors have no appreciable resistance and the switch has been open for a very long time. The instant after closing the switch, what is the current through the 10.0 Ohm resistor? (choose from below)

zero

1.00 A

1.43 A

1.67 A

8.

For the circuit shown in the figure, the inductors have no appreciable resistance and the switch has been open for a very long time. The instant after closing the switch, what is the current through the 10.0 Ohm resistor? (choose from below)

zero

10 A

2.5 A

1.0 A

zero

1.00 A

1.43 A

1.67 A

Explanation / Answer

After a very long time the switch is closed, At time t = 0, Inductors will act as an open circut.
So, No current will flow through the inductor.

10.0 & 60.0 are in series,.
Req = 10.0 + 60.0 = 70..0

I = V/req
I = 100/70 =  1.43 A

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