Which circuit element(s) act(s) to oppose changes in the current in an AC circui

Question

Which circuit element(s) act(s) to oppose changes in the current in an AC circuit? resistors only capacitors only inductors only both resistors and inductors both capacitors and resistors When the current in an oscillating LC circuit is zero. the charge on the capacitor is zero. the charge is moving through the inductor. the energy in the electric field is maximum. the energy in the magnetic field is maximum. the energy is equally shared between the electric and magnetic fields. A uniform magnetic field is directed into the page. A charged particle, moving in the plane of the page, follows a clockwise spiral of decreasing radius as shown. A reasonable explanation is: the charge is positive and slowing down the charge is negative and slowing down the charge is positive and speeding up the charge is negative and speeding up none of the above FOR QUESTIONS 43 THROUGH 47. USE THE FOLLOWING INFORMATION An AC voltage source supplies a voltage of amplitude 150 Volts at a linear frequency of 60 Hertz. It is connected in series with a 35 mH inductor, a 45 mu F capacitor, and an 85 Ohm resistor. What is the capacitive reactance for this circuit? A. 13.2 Ohm 23.4 Ohm 58.9 Ohm D. 85.0 Ohm 96.5 Ohm What is the inductive reactance for this circuit? 13.2 Ohm23.4 Ohm 58.9 Ohm 85.0 Ohm 96.5 Ohm What is the impedance of the circuit? 13.2 Ohm23.4Ohm 58.9 Ohm 85.0 Ohm 96.5 Ohm What is the amplitude of the current in this circuit? 0.40 A 0.57A 1.06 A 1.56 A.2.26A Which statement concerning this circuit is true? V leads I V and I are in phase V and I are exactly out of phase The phase angle for this circuit is positive. The circuit is more capacitive than inductive.

Explanation / Answer

Question #40

The correct answer is option C.

Inductors opposes the Current in the A.C circuit because A.C changes its direction in one cycle twice so, by the changing current an induced current is created in the inductor which will oppose the A.C. This is also know as back-emf.

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