Examkin

Soru

Zorluk: KolayFundamentals of Electromagnetism and Induction

According to the principles of electromagnetic induction, what occurs in a closed wire loop when the surrounding magnetic field changes?

  1. A
    The electrical resistance of the wire drops completely to zero.
  2. B
    A voltage is generated only while the magnetic field remains completely stationary.
  3. An electric current is induced to flow through the wire.Cevap
  4. D
    The wire is permanently converted into an electrical insulator.

Cevap

An electric current is induced to flow through the wire.
Electromagnetic induction occurs when a changing magnetic field cuts across a conductor, creating an electromotive force (voltage). In a closed loop, this induced voltage causes an electric current to flow.

Adım Adım Çözüm

1
Identify the relationship between changing magnetic fields and conductors
A changing magnetic field cutting across a conductor generates an electromotive force (EMF).
Faraday's Law of Induction establishes that voltage is generated whenever magnetic flux lines cross a conductive path.
2
Apply the generated electromotive force to a closed circuit
The induced EMF causes electric current to circulate through the complete loop.
In any closed conductive loop, an induced potential difference creates electron flow.

Anahtar Kavram

Electromagnetic induction (generation of voltage and current via changing magnetic flux)
Tahmini Süre:40s
Bu soruyu puanla

Konular

Fundamentals of Electromagnetism and Induction

Bu konudan daha fazla soru