Question

Faraday's law confirms the conservation of energy because ________?

1) it states that the induced electromotive force (emf) in a closed loop is equal to the rate of change of magnetic flux through the loop
2) it states that the induced current in a closed loop is directly proportional to the rate of change of magnetic flux through the loop
3) it states that the induced electromotive force (emf) in a closed loop is inversely proportional to the rate of change of magnetic flux through the loop
4) it states that the induced current in a closed loop is inversely proportional to the rate of change of magnetic flux through the loop

Answer 1

Faraday's law supports the conservation of energy by stating that the induced emf in a closed loop is proportional to the rate of change of the magnetic flux, and Lenz's law ensures that this induced emf opposes the change in flux to prevent energy creation without a source.

Step-by-step explanation:

Faraday's law confirms the conservation of energy because it states that the induced electromotive force (emf) in a closed loop is equal to the rate of change of magnetic flux through the loop. According to Faraday's discoveries, the induced emf is directly proportional to the change in flux (ΔD), and if a coil has N turns, the emf is N times greater. Additionally, Lenz's law, which is inherently tied to Faraday's law, ensures that the direction of the induced current opposes the change in magnetic flux, therefore reflecting the conservation of energy principle. If the induced current were to aid instead of oppose the flux change, it would lead to the creation of energy without a source, thus violating the conservation of energy.