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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 Faraday's laws of electromagnetic induction.
In which of the following case does the electromagnetic induction occur?
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?
Explain the principle, construction and working of a dc motor.
The direction of the magnetic field around a straight conductor carrying current can be determined by ______.
Fleming’s left-hand rule is also known as the dynamo rule.
Define the right-hand thumb rule.
Two positively charged particles each having charge Q and are d distance apart. A third charge is introduced in midway on the line joining the two. Find nature and magnitude of third charge, so that the system is in equilibrium ______.
State the use of the principle of electromagnetic induction.
State two factors on which the magnitude of induced e.m.f. in a coil depend.
