Answer Happy

A 12.0 V battery is connected into a series circuit containing a 20.00 resistor and a 2.10 H inductor (a) In what time interval (in s) will the current reach 50.0% of its final value? 1.706 X What formula gives the current as a function of time for an RL circuit that is in series with a battery? In the limita time goes to infinity, what is the final value of the current? Use the formula again to calculate the time when the current is equal to half this value. s (b) In what time interval (in s) will the current reach 90.0% of its final value? S What If? After a very long time, using a switch like that shown in the figure below, the battery is removed and the inductor is connected directly across the resistor. Sg R a lee L E (c) In what time interval (in s) will the current decrease to 50.0% of its initial value? (d) In what time interval (in s) will the current decrease to 10.0% of its initial value? s