Advertisements
Advertisements
प्रश्न
Explain how does the Lenz's law show the conservation of energy in the phenomenon of electromagnetic induction.
Advertisements
उत्तर
By applying a force to a moving magnetic field, which acts as an opposing force, Lenz's Law demonstrates how mechanical energy can be converted into electrical energy. Therefore, "it implies the law of conservation of energy."
APPEARS IN
संबंधित प्रश्न
- How would you demonstrate that a momentary current can be obtained by the suitable use of a magnet, a coil of wire and a galvanometer?
- What is the source of energy associated with the current obtained in part (a)?
The direction of induced current is obtained by ______.
Magnetic flux passing through a coil is initially 6 x 10-4 Wb. It reduces to 10 % of its original value in 't' second. If the e.m.f. induced is 0.54 mV then 't' in second is ____________.
A.C generator works on the principle of ____________.
The direction of the magnetic field around a straight conductor carrying current can be determined by ______.
Define the right-hand thumb rule.
A vertical electric field of magnitude 4.9 × 105 N/C just prevents a water droplet of a mass 0.1 g from falling. The value of charge on the droplet will be: (Given g = 9.8 m/s2).
Name the principle of AC generator.
The magnetic flux through a coil perpendicular to its plane is varying according to the relation Φ = (5t3 + 4t2 + 2t − 5) Weber. If the resistant of the coil is 5 ohm, then the induced current through the coil at t = 2 sec will be ______.
