What happens to the induced EMF when the area of a loop in a magnetic field is i

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Question: What happens to the induced EMF when the area of a loop in a magnetic field is increased?

Options:

Correct Answer: Increases

Solution:

According to Faraday\'s law, if the area of the loop is increased in a magnetic field, the induced EMF increases.

What happens to the induced EMF when the area of a loop in a magnetic field is increased?

What happens to the induced EMF when the area of a loop in a magnetic field is increased?

Step 1: Understand what EMF is. EMF stands for electromotive force, which is the voltage generated by a changing magnetic field.
Step 2: Know about Faraday's law. Faraday's law states that the induced EMF in a loop is directly related to the rate of change of magnetic flux through that loop.
Step 3: Recognize what magnetic flux is. Magnetic flux is the product of the magnetic field strength and the area of the loop that the field passes through.
Step 4: Realize that increasing the area of the loop means more magnetic field lines can pass through it.
Step 5: Conclude that if the area of the loop increases, the magnetic flux increases, which leads to a greater induced EMF according to Faraday's law.

Faraday's Law of Electromagnetic Induction – The induced EMF in a circuit is proportional to the rate of change of magnetic flux through the loop.
Magnetic Flux – Magnetic flux is the product of the magnetic field strength, the area of the loop, and the cosine of the angle between the field and the normal to the loop.