A loop of wire is moved into a uniform magnetic field at a constant speed. What

₹0.0

Question: A loop of wire is moved into a uniform magnetic field at a constant speed. What happens to the induced EMF as it enters the field?

Options:

Correct Answer: It increases

Solution:

As the loop enters the magnetic field, the area exposed to the magnetic field increases, leading to an increase in the induced EMF.

A loop of wire is moved into a uniform magnetic field at a constant speed. What happens to the induced EMF as it enters the field?

A loop of wire is moved into a uniform magnetic field at a constant speed. What happens to the induced EMF as it enters the field?

Step 1: Understand that a loop of wire is being moved into a magnetic field.
Step 2: Recognize that the magnetic field is uniform, meaning it has the same strength and direction throughout.
Step 3: Know that when the loop enters the magnetic field, more of the loop's area is exposed to the magnetic field.
Step 4: Remember that the induced EMF (electromotive force) is related to the change in magnetic flux through the loop.
Step 5: As the area of the loop in the magnetic field increases, the magnetic flux through the loop also increases.
Step 6: Since the magnetic flux is increasing, the induced EMF will also increase.

Electromagnetic Induction – The process by which a changing magnetic field within a closed loop induces an electromotive force (EMF) in the wire.
Faraday's Law of Induction – The induced EMF in a circuit is directly proportional to the rate of change of magnetic flux through the circuit.
Magnetic Flux – The product of the magnetic field strength and the area through which it acts, which changes as the loop enters the magnetic field.