Magnetic field stored in an inductor?

[pivoxa15]

Does anyone know how a magnetic field stored in an inductor (like a solenoid) can be used to light a globe (when connected via a circuit)?

I assume there must be a changing magnetic flux caused by a change in magnetic field in the inductor so as to induce an electric field causing a potential difference between the ends of the inductor. But I do not know how a change in the magnetic field can be established. Does the magnetic field automatically change just like how a capacitor automatically discharges when connected? If so I do not know the why behind it.

Thanks

 

[Vailanor]

for your help.Yes, it is possible to use an inductor to light a globe. When the inductor is connected to a circuit, an alternating current will flow through the inductor, generating a changing magnetic field. This changing magnetic field in turn induces a voltage across the terminals of the inductor. This voltage can then be used to power a globe, or any other electrical device.

 

[astrokreng]

for your question! Yes, you are correct in your understanding that a changing magnetic field in an inductor (such as a solenoid) can induce an electric field and create a potential difference, which can then be used to power a circuit and light a globe. This is known as electromagnetic induction.

The change in magnetic field can be established by either changing the current flowing through the inductor, or by moving the inductor in relation to a magnetic field. This is known as Faraday's law of induction.

To answer your question about whether the magnetic field automatically changes like how a capacitor discharges, the answer is no. The magnetic field in an inductor will only change if there is a change in the current or if the inductor is moved. Otherwise, the magnetic field will remain constant.

I hope this helps to clarify your understanding of how a magnetic field stored in an inductor can be used to light a globe. Keep asking questions and exploring the fascinating world of electromagnetism!