00:01
To solve this question, we have to calculate what is the current that flows through the circuit.
00:05
And to calculate the current, we have to calculate the impedance.
00:08
And to calculate the impedance, we have to calculate the reactances.
00:13
So, we begin by calculating the capacitive reactance, which is given by 1 divided by 2 pi times the frequency times the capacitance.
00:23
And this is equal to 1 divided by 2 pi times 60, times 0 .12 times 10 to the minus 6 because there is a micro there and then this is approximately 22 .1 kilooms and now we calculate the inductive reactance the inductive reactance is equal to 2 pi times the frequency times the inductance which is 2 pi times 60 times 28 times 10 to the minus there is a millie there and this is approximately 10 .6 oms and now we have to calculate the impedance which is given by the square root of the resistance squared plus the difference between the reactances squared and this is equal to the square root of 8 .8 times 10 to the third squared plus 22 1 times 10 to the 3rd minus 10 .6 squared and this is approximately 23 .8 kilooms.
01:49
Now that we have the impedance, we can calculate the current that flows through the circuit.
01:54
And it's given by the voltage divided by the impedance, which is equal to 115 divided by 23 .8 times 10 to the third and this is approximately 4 .83 mili -amperors...