If the magnetic field through a loop is increasing at a constant rate, what can
Practice Questions
Q1
If the magnetic field through a loop is increasing at a constant rate, what can be said about the induced current?
It is constant
It is increasing
It is decreasing
It is zero
Questions & Step-by-Step Solutions
If the magnetic field through a loop is increasing at a constant rate, what can be said about the induced current?
Step 1: Understand that a loop of wire can have a magnetic field passing through it.
Step 2: Know that when the magnetic field changes, it can create an electric current in the loop. This is called induced current.
Step 3: Recognize that if the magnetic field is increasing, it means more magnetic lines are passing through the loop over time.
Step 4: Realize that an increasing magnetic field creates an induced voltage (called EMF) in the loop.
Step 5: Since the magnetic field is increasing at a constant rate, the induced EMF is also increasing at that same rate.
Step 6: Understand that if the induced EMF is increasing, the induced current (the flow of electric charge) in the loop must also be increasing.
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, which can cause an induced current.
Lenz's Law – This law indicates that the direction of the induced current will be such that it opposes the change in magnetic flux that produced it.
Induced EMF and Current Relationship – The induced EMF is directly related to the rate of change of magnetic flux, and if the magnetic field is increasing at a constant rate, the induced current will also increase.