Electromagnetic Induction and Faraday's Law

To predict how a magnetic field will produce an EMF in a loop of wire (correct)

To measure the strength of a magnetic field

To calculate the area of a loop of wire

To generate an EMF in a loop of wire without changing the magnetic flux

The loop of wire is demagnetized

The loop of wire becomes magnetized

The magnetic field is cancelled out

An EMF is generated in the loop, driving a current (correct)

The induced current is always stronger than the external field

The induced current is always weaker than the external field

The induced current always flows in the same direction as the external field

The induced current and induced magnetic field oppose the change in flux (correct)

<p>The external field gets smaller</p> Signup and view all the answers

<p>The magnetic field must be varied</p> Signup and view all the answers

<p>Two, the external field and the induced field</p> Signup and view all the answers