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प्रश्न
Explain how does the Lenz's law show the conservation of energy in the phenomenon of electromagnetic induction.
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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."
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संबंधित प्रश्न
State Lenz’s Law.
- 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)?
- Describe briefly one way producing an induced e.m.f?
- State one factor that determines the magnitude of induced e.m.f. in part (a) above.
- What factor determines the direction of induced e.m.f. in part (a) above?
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 ____________.
A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference.
The direction of the magnetic field around a straight conductor carrying current can be determined by ______.
Define the right-hand thumb rule.
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 ______.
A circular loop is placed in a uniform magnetic field. The total number of magnetic field lines passing normally through the plane of the coil is called ______.
Name the principle of AC generator.
