Question

Suppose you take a short piece of wire that is not attached to anything and move it up and down in a magnetic field. Explain whether or not a current will be induced, and why.

Answer 1

sample response: A current will not be induced because the wire is not part of a closed circuit. The electrical charges have no place to flow to.

Answer 2

no current

Step-by-step explanation:

Current is induced in the wire if the circuit is complete and the magnetic flux linked with it also changes. Due to change in flux, an emf gets induced. Its magnitude is given by :

`\epsilon=(-d\phi)/(dt)`

But in this case, a short piece of wire is not attached to anything and move it up and down in a magnetic field. It means that the circuit is not complete. It act as a open circuit. Hence, no current is induced in the wire.