17. Find the 11, currents 12, and 13 in the circuit below. I 10V 18. A...

 

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17. Find the 11, currents 12, and 13 in the circuit below. I 10V 18. A parallel LRC circuit connected across a yariable AC voltage source V= V0 cos(ot) is drawn above. Find: (a) The current I(t) in the primary supply wire (as shown in the figure above) with all terms, e.g. the phase o, and the impedance Z defined (the latter in terms of the individual reactances).(b) The average power dissipated by the circuit. Note that (if you are clever and remember what each elements does in the circuit) you don't really have to solve a) to get this answer, although you can eertainly get the same answer from a knowledge ofV (t) and I(t) and some integration. Hint: To find the answer you must add the currents being drawn by each element separately! Your answer for Z should remind you of parallel addition of resistors, using reactances instead (two of which are n/2 out of phase with the resistor, of course). 17. Find the 11, currents 12, and 13 in the circuit below. I 10V 18. A parallel LRC circuit connected across a yariable AC voltage source V= V0 cos(ot) is drawn above. Find: (a) The current I(t) in the primary supply wire (as shown in the figure above) with all terms, e.g. the phase o, and the impedance Z defined (the latter in terms of the individual reactances).(b) The average power dissipated by the circuit. Note that (if you are clever and remember what each elements does in the circuit) you don't really have to solve a) to get this answer, although you can eertainly get the same answer from a knowledge ofV (t) and I(t) and some integration. Hint: To find the answer you must add the currents being drawn by each element separately! Your answer for Z should remind you of parallel addition of resistors, using reactances instead (two of which are n/2 out of phase with the resistor, of course).

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17 Find the currents I1 I2 and I3 in the circuit below 1 10 v 2 V I... View the full answer