A coil of wire is placed in a magnetic field. If the magnetic field strength is increased, what happens to the induced EMF?
Practice Questions
1 question
Q1
A coil of wire is placed in a magnetic field. If the magnetic field strength is increased, what happens to the induced EMF?
Increases
Decreases
Remains constant
Becomes zero
According to Faraday's law of electromagnetic induction, an increase in magnetic field strength induces a greater EMF.
Questions & Step-by-step Solutions
1 item
Q
Q: A coil of wire is placed in a magnetic field. If the magnetic field strength is increased, what happens to the induced EMF?
Solution: According to Faraday's law of electromagnetic induction, an increase in magnetic field strength induces a greater EMF.
Steps: 5
Step 1: Understand that a coil of wire can generate electricity when it is in a magnetic field.
Step 2: Learn about Faraday's law of electromagnetic induction, which states that a change in magnetic field can induce an electromotive force (EMF) in the coil.
Step 3: Recognize that increasing the strength of the magnetic field is a change that affects the coil.
Step 4: Conclude that if the magnetic field strength increases, it will cause a greater change in the magnetic environment around the coil.
Step 5: Therefore, according to Faraday's law, a greater change in the magnetic field strength will result in a greater induced EMF in the coil.
