A circular loop of wire is placed in a uniform magnetic field. If the magnetic f
Practice Questions
Q1
A circular loop of wire is placed in a uniform magnetic field. If the magnetic field is increased, what happens to the induced EMF in the loop?
Increases
Decreases
Remains constant
Becomes zero
Questions & Step-by-Step Solutions
A circular loop of wire is placed in a uniform magnetic field. If the magnetic field is increased, what happens to the induced EMF in the loop?
Step 1: Understand that a circular loop of wire is placed in a magnetic field.
Step 2: Know that a magnetic field is a region where magnetic forces can be felt.
Step 3: Learn about Faraday's law of electromagnetic induction, which states that a change in magnetic field can induce an electromotive force (EMF) in a loop.
Step 4: Recognize that if the magnetic field strength increases, it means there is a change happening in the magnetic field.
Step 5: Conclude that this change (increase) in the magnetic field will induce an EMF in the loop.
Faraday's Law of Electromagnetic Induction – This law states that a change in magnetic flux through a loop induces an electromotive force (EMF) in the loop.
Magnetic Flux – Magnetic flux is the product of the magnetic field strength and the area of the loop through which the field lines pass.
Induced EMF – Induced EMF is the voltage generated in the loop due to a change in magnetic flux.
