Which term describes the property that generates voltage when a conductor is exposed to changing magnetic fields?

Which term describes the property that generates voltage when a conductor is exposed to changing magnetic fields?

• A. Capacitance
• B. Effective Value
• C. Inductance
• D. Peak Voltage

Answer: (C)

When a conductor experiences a changing magnetic field, the magnetic flux through it changes and an electromotive force is induced. The term that describes how much voltage is produced in response to a change in current (and the related energy storage in the magnetic field) is inductance. It’s defined by V = L di/dt, meaning the voltage generated is proportional to how quickly the current is changing. This is the behavior you’d expect from a coil or inductor, which resists rapid changes in current in accordance with Lenz’s law and stores energy magnetically. Capacitance, by contrast, deals with electric fields and charge storage; effective value refers to RMS magnitude for AC, not the mechanism of induction; peak voltage is simply the maximum instantaneous voltage.

When a conductor experiences a changing magnetic field, the magnetic flux through it changes and an electromotive force is induced. The term that describes how much voltage is produced in response to a change in current (and the related energy storage in the magnetic field) is inductance. It’s defined by V = L di/dt, meaning the voltage generated is proportional to how quickly the current is changing. This is the behavior you’d expect from a coil or inductor, which resists rapid changes in current in accordance with Lenz’s law and stores energy magnetically.

Capacitance, by contrast, deals with electric fields and charge storage; effective value refers to RMS magnitude for AC, not the mechanism of induction; peak voltage is simply the maximum instantaneous voltage.