Problem: The switch in the figure has been open for a long time. It is closed at t = 0 s.What is the current through the 20 ohm resistor immediately after the switch is closed?

FREE Expert Solution

For resistors in series:

Req=R1+R2 ... + Rn

Ohm's law:

V=iR

The inductor acts as a path of infinite resistance (open circuit) immediately after the switch is closed.

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Problem Details

The switch in the figure has been open for a long time. It is closed at t = 0 s.

What is the current through the 20 ohm resistor immediately after the switch is closed?

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