In the figure below, R1 = 8.4 ?, R2 = 11 ?, L1 = 0.29 H, L2 = 0.17 H, and the id
ID: 2211173 • Letter: I
Question
In the figure below, R1 = 8.4 ?, R2 = 11 ?, L1 = 0.29 H, L2 = 0.17 H, and the ideal battery has ? = 6.2 V.
(a) Just after switch S is closed, at what rate is the current in inductor 1 changing?
(b) When the circuit is in the steady state, what is the current in inductor 1?
In the figure below, R1 = 8.4 ?, R2 = 11 ?, L1 = 0.29 H, L2 = 0.17 H, and the ideal battery has ? = 6.2 V. (a) Just after switch S is closed, at what rate is the current in inductor 1 changing? (b) When the circuit is in the steady state, what is the current in inductor 1?Explanation / Answer
just after switch is closed,inductor offers infinite resistance for flow of current they can be considered open circuited => no current passes in the circuit => potential difference across L1 = 6.2V di/dt = V/L = 21.37 A/s b) in steady state,inductors can be taken to be short circiuted therefore current through the circuit i = 6.2/8.4 = 0.73 Amp => current through L1 = 0.73 Amp