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    About 14 results
    • https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electricity_and_Magnetism_(Tatum)/13%3A_Alternating_Current/13.04%3A_Resistance_and_Inductance_in_Series
      The impedance is just the sum of the resistance of the resistor and the impedance of the inductor.
    • https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/23%3A_Electromagnetic_Induction_AC_Circuits_and_Electrical_Technologies/23.12%3A_Inductance
      Camera flashes use a battery, two inductors that function as a transformer, and a switching system or oscillator to induce large voltages. (Remember that we need a changing magnetic field, brought abo...Camera flashes use a battery, two inductors that function as a transformer, and a switching system or oscillator to induce large voltages. (Remember that we need a changing magnetic field, brought about by a changing current, to induce a voltage in another coil.) The oscillator system will do this many times as the battery voltage is boosted to over one thousand volts. (You may hear the high pitched whine from the transformer as the capacitor is being charged.) A capacitor stores the high volta…
    • https://phys.libretexts.org/Courses/Grand_Rapids_Community_College/PH246_Calculus_Physics_II_(2025)/09%3A_Electromagnetic_Induction/9.09%3A_Mutual_Inductance
      Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying cur...Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. This type of emf is therefore called a mutually induced emf, and the phenomenon is
    • https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/08%3A_Fast_electronics_and_transient_behavior_on_TEM_lines/8.02%3A_Limits_posed_by_devices_and_wires
      This page provides a comprehensive overview of electronic device models, focusing on vacuum tubes and semiconductors. It explores the physical principles, emphasizing time constants, junction capacita...This page provides a comprehensive overview of electronic device models, focusing on vacuum tubes and semiconductors. It explores the physical principles, emphasizing time constants, junction capacitance effects, and circuit design impacts on operational frequencies. The analysis includes the influence of wire characteristics on resistance and performance, as well as semiconductor properties like energy gaps, doping, and p-n junction behavior under different biases.
    • https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/03%3A_Electromagnetic_fields_in_simple_devices_and_circuits/3.02%3A_Inductors_and_transformers
      This page covers the design and behavior of solenoidal inductors and transformers, focusing on inductance properties affected by coil turns, gaps, and materials. It highlights the relationship between...This page covers the design and behavior of solenoidal inductors and transformers, focusing on inductance properties affected by coil turns, gaps, and materials. It highlights the relationship between inductance, stored energy, and design constraints, especially in air-wound and toroidal inductors. The text addresses circuit configurations, transformer operation, and mitigations against eddy currents in iron-core transformers.
    • https://phys.libretexts.org/Courses/Kettering_University/Electricity_and_Magnetism_with_Applications_to_Amateur_Radio_and_Wireless_Technology/10%3A_Inductance/10.02%3A_Mutual_Inductance
      Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying cur...Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. This type of emf is therefore called a mutually induced emf, and the phenomenon is
    • https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/08%3A_Electromagnetic_Induction_AC_Circuits_and_Electrical_Technologies/8.13%3A_Inductance
      Camera flashes use a battery, two inductors that function as a transformer, and a switching system or oscillator to induce large voltages. (Remember that we need a changing magnetic field, brought abo...Camera flashes use a battery, two inductors that function as a transformer, and a switching system or oscillator to induce large voltages. (Remember that we need a changing magnetic field, brought about by a changing current, to induce a voltage in another coil.) The oscillator system will do this many times as the battery voltage is boosted to over one thousand volts. (You may hear the high pitched whine from the transformer as the capacitor is being charged.) A capacitor stores the high volta…
    • https://phys.libretexts.org/Bookshelves/University_Physics/Radically_Modern_Introductory_Physics_Text_II_(Raymond)/17%3A_Capacitors_Inductors_and_Resistors/17.02%3A_Magnetic_Induction_and_Inductors
      The EMF or work done by this electric field on a unit charge moving from the right end of the upper plate, around the wire loops at the left end, and back to the right end of the lower plate is In ord...The EMF or work done by this electric field on a unit charge moving from the right end of the upper plate, around the wire loops at the left end, and back to the right end of the lower plate is In order for the current \(i\) through the inductor to increase with time, an external potential difference Δ\(\phi\) must be imposed between the input and output wires of the inductor, which just balances the effects of the internally generated electric field:
    • https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/03%3A_Electromagnetic_fields_in_simple_devices_and_circuits/3.03%3A_Quasistatic_behavior_of_devices
      This page discusses the behaviors of electroquasistatic and magnetoquasistatic devices, focusing on how electric and magnetic fields interact under varying conditions, as per Maxwell's equations. It h...This page discusses the behaviors of electroquasistatic and magnetoquasistatic devices, focusing on how electric and magnetic fields interact under varying conditions, as per Maxwell's equations. It highlights the calculation of inductance and magnetic energy in short wire segments while employing quasistatic assumptions.
    • https://phys.libretexts.org/Courses/Berea_College/Electromagnetics_I/07%3A_Magnetostatics/7.12%3A_Inductance
      Current creates a magnetic field, which subsequently exerts force on other current-bearing structures. For example, the current in each winding of a coil exerts a force on every other winding of the c...Current creates a magnetic field, which subsequently exerts force on other current-bearing structures. For example, the current in each winding of a coil exerts a force on every other winding of the coil. If the windings are fixed in place, then this force is unable to do work (i.e., move the windings), so instead the coil stores potential energy. This potential energy can be released by turning off the external source.
    • https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/University_Physics_II_-_Thermodynamics_Electricity_and_Magnetism_(OpenStax)/14%3A_Inductance/14.02%3A_Mutual_Inductance
      Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying cur...Inductance is the property of a device that tells us how effectively it induces an emf in another device. It expresses the effectiveness of a given device. When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. This type of emf is therefore called a mutually induced emf, and the phenomenon is

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