[Magnetic Flux and Lenz's Law] Is this picture correct?

In summary, the arrow of the ammeter is pointing in the correct direction because the induced current is going through the positive end of the ammeter and out of the negative end. The loop is pushed to the right out of the magnetic field because the induced current is counterclockwise, which causes the loop to move in the opposite direction of the original current. The diagram is correct because the wire is the source of the EMF and the right end of the loop is the positive end, similar to a cell. The current flows from the positive end of the EMF into the positive end of the ammeter.
  • #1
MienTommy
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Is the arrow of the ammeter pointing in the correct direction? The induced current is going through the positive end of the ammeter and out of the negative end. Since current is traveling towards the positive end of the ammeter, shouldn't the ammeter point towards the negative direction?
 

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  • #2
Also, (picture attached to this post), why is the the loop pushed to the right out of the magnetic field? Since the induced current is ccw, shouldn't it push the loop to the left because the original current is cw which is already pushing the loop to the left?
 

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  • #3
The diagram is correct, an EMF is induced in the lower wire and the resulting induced current is as shown. Remember the wire is the source of the EMF and so the right hand end of the loop is the +ve of the EMF...think of it as a cell...the current flows from the + of the EMF...that is into the + of the ammeter
 

1. What is magnetic flux?

Magnetic flux is a measure of the amount of magnetic field passing through a given area. It is represented by the symbol Φ and is measured in units of webers (Wb).

2. What is Lenz's law?

Lenz's law is a fundamental law of electromagnetism that states that the direction of an induced current in a circuit will always oppose the change that caused it.

3. How is magnetic flux related to Lenz's law?

Magnetic flux is directly related to Lenz's law because changes in magnetic flux can induce a current in a circuit, which will always oppose the change in magnetic flux according to Lenz's law.

4. Is the picture showing the correct direction of induced current?

It is not possible to determine the direction of induced current from a picture alone. The direction of induced current is dependent on the direction of change in magnetic flux and the orientation of the circuit, as well as the direction of the magnetic field.

5. How can I visually determine the direction of induced current?

The direction of induced current can be determined using the right-hand rule. If you point your thumb in the direction of the changing magnetic field and your fingers in the direction of the current-carrying wire, your palm will face in the direction of the induced current.

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