A 5.0-mH inductor and a 8.5-? resistor are connected in series with a 6-V dc bat

Question

A 5.0-mH inductor and a 8.5-? resistor are connected in series with a 6-V dc battery as shown

(a) What is the voltage across the resistor immediately after the switch is closed?

(b) What is the voltage across the resistor after the switch has been closed for a long time?

(c) What is the current in the inductor after the switch has been closed for a long time?

A 5.0-mH inductor and a 8.5-? resistor are connected in series with a 6-V dc battery as shown A 5.0-mH inductor and a 8.5-? resistor a (a) What is the voltage across the resistor immediately after the switch is closed? (b) What is the voltage across the resistor after the switch has been closed for a long time? (c) What is the current in the inductor after the switch has been closed for a long time?

Explanation / Answer

1. 0V as inductor will behave as open circuit.

2. 6V as inductor will behave as short circuited wire.

3. I=V/R=6/8.5=0.71A

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