What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic field changes?
Practice Questions
1 question
Q1
What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic field changes?
Induced EMF decreases
Induced EMF remains the same
Induced EMF increases
Induced EMF becomes zero
According to Faraday's law of electromagnetic induction, the induced EMF is proportional to the rate of change of magnetic flux and the number of turns in the coil. Increasing the number of turns increases the induced EMF.
Questions & Step-by-step Solutions
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Q
Q: What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic field changes?
Solution: According to Faraday's law of electromagnetic induction, the induced EMF is proportional to the rate of change of magnetic flux and the number of turns in the coil. Increasing the number of turns increases the induced EMF.
Steps: 6
Step 1: Understand what a coil is. A coil is a wire wound in a spiral shape.
Step 2: Learn about magnetic fields. A magnetic field is an area around a magnet where magnetic forces can be felt.
Step 3: Know what EMF (Electromotive Force) is. EMF is the voltage generated by a coil when the magnetic field changes.
Step 4: Familiarize yourself with Faraday's law. It states that the induced EMF in a coil is related to how quickly the magnetic field changes and how many turns the coil has.
Step 5: Realize that more turns in the coil means more wire is present to interact with the changing magnetic field.
Step 6: Conclude that if you increase the number of turns in the coil, the induced EMF will also increase when the magnetic field changes.
