Advertisements
Advertisements
प्रश्न
Name the principle of AC generator.
Advertisements
उत्तर
Faraday’s first law or principle of electromagnetic induction.
APPEARS IN
संबंधित प्रश्न
Explain the principle, construction and working of a dc motor.
In a coil of resistance 150 `Omega`, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is ____________.

Express Faraday-Lenz's law of electromagnetic induction in an equation form.
A conductor in the form of a circular arc of the radius of curvature R subtends an angle Ø at its centre of curvature. If the current in the conduct is I, the magnetic induction at the centre of curvature is ______.
State two factors on which the magnitude of induced e.m.f. in a coil depend.
If magnetic flux is measured in weber and time in seconds, what is the unit of induced emf?
What is the induced emf if both a magnet and a coil remain stationary?
What interaction opposes a north pole moving towards the near face of a coil?
What interaction opposes a north pole moving away from the near face of a coil?
