NDA2014General AbilityGeneral ScienceActual
The phenomenon of electromagnetic induction implies a production of induced
Options
- Aresistance in a coil when the magnetic field changes with time
- Bcurrent in a coil when an electric field changes with time
- Ccurrent in a coil when a magnetic field changes with time
- Dvoltage in a coil when an electric field changes with time
Correct answer
C. current in a coil when a magnetic field changes with time
Step-by-step solution
Faraday's law of electromagnetic induction says that "whenever the flux of magnetic field through the area bounded by a closed conducting loop changes, an emf is produced in the loop, which induces a current in the coil".