10:19Inductors Explained - The basics how inductors work working principleThe Engineering Mindset398views
12:34Inductive Reactance, Impedance, & Power Factor - AC Circuits - PhysicsThe Organic Chemistry Tutor702views
10:33Inductors Have Inductance, Reactance, AND Impedance. DANG, DAWG. | Doc PhysicsDoc Schuster346views
Multiple ChoiceWill a frequency f = 60 Hz or ω = 75 s−1 produce a larger max current in an inductor connected to an AC source?307views1rank
Multiple ChoiceA certain laptop charger says that the Vrms provided to the laptop is 12 V. You know this charger is plugged into an outlet for which Vrms is 120 V, such that there must be a transformer inside the laptop charger. If the number of windings of wire on the laptop side of the transformer is 60, how many windings of wire must be on the outlet side of the transformer?318views
Multiple ChoiceThe peak current to and from an inductor is IL when the emf source has a peak voltage V and frequency f. What is the peak current to and from the inductor if the frequency and peak voltage are doubled to 2f and 2V. respectively?364views1comments
Multiple ChoiceAn AC circuit consists of an inductor and an emf source with frequency 0.25Hz. If the source is turned on at t=0s, and the first time the voltage across the inductor reaches a maximum value is at t=1.4s, when is the first time the current in the inductor is at a maximum?252views
Multiple ChoiceThe peak current to and from an inductor is i when the emf source has a peak voltage V and frequency f. What is the peak current to and from the inductor if the frequency and peak voltage are doubled to 2f and 2V2V, respectively?260views
Textbook Question(b) What is the inductance of an inductor whose reactance is 120 Ω at 80.0 Hz?302views
Textbook QuestionThe peak current through an inductor is 10 mA. What is the peak current if b. The emf peak voltage is doubled (at the original frequency)?74views
Textbook QuestionIn some experiments, very tiny distances or spaces ( ≈ nm ) can be measured by using capacitance. Consider forming an LC circuit using a parallel-plate capacitor with plate area A, and a known inductance L. (a) If charge is found to oscillate in this circuit at frequency f = ω/2π when the capacitor plates are separated by distance x, show that x = 4π² Aε₀f²L.31views
Textbook QuestionIn some experiments, very tiny distances or spaces ( ≈ nm ) can be measured by using capacitance. Consider forming an LC circuit using a parallel-plate capacitor with plate area A, and a known inductance L. (b) When the plate separation is changed by ∆x, the circuit’s oscillation frequency will change by ∆f. Show that ∆x/x ≈ 2(∆f/f).34views
Textbook QuestionIn some experiments, very tiny distances or spaces ( ≈ nm ) can be measured by using capacitance. Consider forming an LC circuit using a parallel-plate capacitor with plate area A, and a known inductance L. (c) If f is on the order of 1 MHz and can be measured to a precision of ∆f = 1 Hz, with what percent accuracy can x be determined? Assume fringing effects at the capacitor’s edges can be neglected.34views