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State Lenz's law....

State Lenz's law.

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**Step-by-Step Text Solution:** 1. **Understanding Electromagnetic Induction**: Begin by recalling Faraday's law of electromagnetic induction, which states that an electromotive force (EMF) is induced in a coil when there is a change in magnetic flux through that coil. 2. **Introduction to Lenz's Law**: Lenz's law is a principle that describes the direction of the induced EMF and current resulting from this change in magnetic flux. 3. **Statement of Lenz's Law**: Lenz's law states that the direction of the induced EMF is such that it opposes the change in magnetic flux that produces it. ...
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Explore conceptually related problems

(a) State Lanz's law. Give one example to illustrate this law. "The Lenz's law is a consequence of the principle of conservation of energy." Justify this statement. (b) Deduce a expression for the mutual inductance of two long coaxial solenoids but having different radii and different number of turns.

State Henry's law.

Select correct statement about Lenz's law

Asseration: Time dependent magnetic field generates electric field. Reason: Direction of electric field generated from time variable magnetic field does not obey Lenz's law.

Which of the following figure correctly depicts the Lenz’s law. The arrows show the movement of the labelled pole of a bar magnet into a closed circular loop and the arrows on the circle show the direction of the induced current

Modern train are based on maglev technology in which trains are magntically levitated, which runs its EDS maglev system. There are coils on both sides of wheels. Due to motion of the train, current induces in the coil of track which levitate it. This is in accordance with Lenz's law. If train lowers down then due to Lenz's law, repulsive force increase due to which train gets uplifted and if it goes much higher then there is a net downward force due to gravity. The advantage of Maglev trains in that there is no friction between the train and the track, thereby reducting power consumption and enabling the train to attain very high speeds. Disavantage of Maglev train is that as it slows down, the electromagnetic forces decreases and it becomes difficult to keep it levitaited and as it moves forward according to Lenz's law there ia an electromagnetic drag force. What is the disadvantage of this system?

Modern train are based on maglev technology in which trains are magntically levitated, which runs its EDS maglev system. There are coils on both sides of wheels. Due to motion of the train, current induces in the coil of track which levitate it. This is in accordance with Lenz's law. If train lowers down then due to Lenz's law, repulsive force increase due to which train gets uplifted and if it goes much higher then there is a net downward force due to gravity. The advantage of Maglev trains in that there is no friction between the train and the track, thereby reducting power consumption and enabling the train to attain very high speeds. Disavantage of Maglev train is that as it slows down, the electromagnetic forces decreases and it becomes difficult to keep it levitaited and as it moves forward according to Lenz's law there ia an electromagnetic drag force. What is the advantage of this system?

Modern train are based on maglev technology in which trains are magntically levitated, which runs its EDS maglev system. There are coils on both sides of wheels. Due to motion of the train, current induces in the coil of track which levitate it. This is in accordance with Lenz's law. If train lowers down then due to Lenz's law, repulsive force increase due to which train gets uplifted and if it goes much higher then there is a net downward force due to gravity. The advantage of Maglev trains in that there is no friction between the train and the track, thereby reducting power consumption and enabling the train to attain very high speeds. Disavantage of Maglev train is that as it slows down, the electromagnetic forces decreases and it becomes difficult to keep it levitaited and as it moves forward according to Lenz's law there ia an electromagnetic drag force. Which force causes the train to elevate up?

State Newton's law of gravitational.

State Newton's law of gravitation.

XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SECTION-C
  1. (a) Write two properties by which electric potential is related to the...

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  2. Answer the following: State Gauss' law in electrostatics. Derive an ...

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  3. State Lenz's law.

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  4. Calculate the capacity of unknown capacitance is connected acrosss a ...

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  5. A plane wavefront propagating from a rarer into a denser medium is inc...

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  6. Distinguish between sky wave and space wave modes of communication. W...

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  7. A parallel plate capacitor of capacitance C is charged to a potential ...

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  8. A nucleus of mass number 240 and having binding energy/nucleon 7.6 MeV...

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  9. Answer the following: (a) In Young's double slit experiment, the two...

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  10. Using Bohr's postulates, derive the expression for the total energy of...

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  11. Name the e.m. waves in the wavelength range 10 nm to 10^(-3)nm. How ...

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  12. Draw the pattern of magnetic field lines for a circular coil carrying ...

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  13. State the reason, why the photodiode is always operated under reverse ...

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  14. Draw the circuit diagram of a common emitter transistor amplifier. Wri...

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  15. Draw a circuit diagram of a full-wave rectifier. Explain its working p...

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  16. Briefly explain the three factors which justify the need of modulating...

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  17. The current through two inductors of self inductance 12 mH and 30 mH i...

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  18. Two wavelengths of sodium light 590 nm and 596 nm are used in turn to ...

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  19. (a) Draw the equipotential surfaces corresponding to a uniform electri...

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  20. Identiy the part of the electromagnatic spectrum used in (i) radar and...

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