Why is there a change in magnetic flux when a wire moves down a constant magnetic field? Magnetic flux = BA, aren't B and A constant? So why is there a change
![SOLVED:Metal ring Iron core Switch Coil Battery Step With the switch open, what is the magnetic flux through the ring? Mark the direction of the current in the coil after the switch SOLVED:Metal ring Iron core Switch Coil Battery Step With the switch open, what is the magnetic flux through the ring? Mark the direction of the current in the coil after the switch](https://cdn.numerade.com/ask_images/c287ab7f249b4215bf44546204426aca.jpg)
SOLVED:Metal ring Iron core Switch Coil Battery Step With the switch open, what is the magnetic flux through the ring? Mark the direction of the current in the coil after the switch
![If a changing magnetic flux induces a voltage, does a voltage also produce a changing magnetic flux, and if not, why? - Quora If a changing magnetic flux induces a voltage, does a voltage also produce a changing magnetic flux, and if not, why? - Quora](https://qph.fs.quoracdn.net/main-qimg-2d0e5fb20f1247f453ace4ec1c711fc9.webp)