Abattery, an inductor, a resistor, and a switch are wired in series. the battery produces an emf of 12.0 v and the inductor is rated at 25.0 mh. what size resistor should be used to yield 65% of the maximum current through the inductor when the switch has been closed for 0.35 s?

0.075 ohm

Explanation:

= maximum value of the current

= value of the current after time "t = 0.35 s" = 0.65

 = resistance of the resistor = ?

 = Inductance of the inductor = 25 mH = 0.025 H

= Time constant of the circuit

Current at any time is given as

sec

Time constant is given as

ohm

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

the area between the graph and the t axis