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
The diagram in shows a coil of several turns of copper wire near a magnet NS. The coil is moved in the direction of arrow shown in the diagram.
- In what direction does the induced current flow in the coil?
- Name the law used to arrive at the conclusion in part (i).
- How would the current in coil be altered if
- the coil has twice the number of turns,
- the coil was made to move three times fast?
The instantaneous magnetic flux in a circuit is `phi=4t^2-4t+1`. The total resistance of circuit is 15 Ω. At t = 2s, the induced current in circuit is ____________.
A.C generator works on the principle of ____________.
The laws of induction were given by ______.
Express Faraday-Lenz's law of electromagnetic induction in an equation form.
Name the principle of AC generator.
What did the experiments of Oersted, Ampere, and others establish about moving electric charges?
What does Faraday’s First Law or Neumann’s law state about the magnitude of induced emf?
What is the induced emf if both a magnet and a coil remain stationary?
Why must work be done to move a magnet towards or away from a coil when an induced current flows?
