arrow
arrow
arrow
Which of the following devices is based on the principle of Faraday’s law of electromagnetic induction ?
Question

Which of the following devices is based on the principle of Faraday’s law of electromagnetic induction ?


A.

  Transformer


B.

  LED lamp


C.

  Incandescent lamp


D.

 Magnetic compass

Correct option is A

The transformer works on the principle of Faraday's law of electromagnetic induction, which states that a change in magnetic flux through a coil induces an electromotive force (EMF) in the coil. In a transformer, an alternating current (AC) in the primary coil generates a changing magnetic field, which induces a voltage in the secondary coil, allowing for voltage transformation.

Free Tests

Free
Must Attempt

Odisha GK Test 01

languageIcon English
  • pdpQsnIcon10 Questions
  • pdpsheetsIcon10 Marks
  • timerIcon10 Mins
languageIcon English
Free
Must Attempt

OSSC CGL Prelims Full Mock Test 01

languageIcon English
  • pdpQsnIcon150 Questions
  • pdpsheetsIcon150 Marks
  • timerIcon150 Mins
languageIcon English
Free
Must Attempt

OSSC CGL 2024 Prelims PYP (Held on 20-Oct-2024)

languageIcon English
  • pdpQsnIcon150 Questions
  • pdpsheetsIcon150 Marks
  • timerIcon150 Mins
languageIcon English
test-prime-package

Access ‘Odisha B.Ed’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
368k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow