which of the following laws is used to find the direction of the induced current in a loop of wire placed in a changing magnetic field?
Which of the following laws is used to find the direction of the induced current in a loop of wire placed in a changing magnetic field?
Answer:
The law that is used to find the direction of the induced current in a loop of wire placed in a changing magnetic field is Faraday’s Law of Electromagnetic Induction. Faraday’s Law states that the induced electromotive force (emf) in any closed circuit is equal to the rate of change of magnetic flux through the circuit.
When there is a change in the magnetic field linking the loop of wire, an induced current is produced in the wire. The direction of this induced current can be determined by Lenz’s Law, which is derived from Faraday’s Law.
Lenz’s Law states that the direction of the induced current is such that it creates a magnetic field that opposes the change in magnetic flux which produced it. In simpler terms, the direction of the induced current is such that it creates a magnetic field that tries to counteract the change in the original magnetic field.