A loop of wire is placed in a uniform magnetic field. What happens to the induced EMF if the area of the loop is increased?
Practice Questions
1 question
Q1
A loop of wire is placed in a uniform magnetic field. What happens to the induced EMF if the area of the loop is increased?
Increases
Decreases
Remains the same
Depends on the magnetic field strength
According to Faraday's law of electromagnetic induction, the induced EMF is directly proportional to the rate of change of magnetic flux, which increases with an increase in the area of the loop.
Questions & Step-by-step Solutions
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Q
Q: A loop of wire is placed in a uniform magnetic field. What happens to the induced EMF if the area of the loop is increased?
Solution: According to Faraday's law of electromagnetic induction, the induced EMF is directly proportional to the rate of change of magnetic flux, which increases with an increase in the area of the loop.
Steps: 6
Step 1: Understand that a loop of wire in a magnetic field can have an induced EMF (electromotive force).
Step 2: Know that the induced EMF is related to the magnetic flux through the loop.
Step 3: Recognize that magnetic flux is calculated as the product of the magnetic field strength and the area of the loop (Flux = Magnetic Field x Area).
Step 4: If the area of the loop increases, the magnetic flux through the loop also increases.
Step 5: According to Faraday's law, the induced EMF is directly proportional to the change in magnetic flux.
Step 6: Therefore, if the area of the loop increases, the induced EMF will also increase.
