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What is the advantage of using a transfo...

What is the advantage of using a transformer for long distance transmission of electrical energy?

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BINA LIBRARY-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT-EXERCISE
  1. What are meant by inductive reactance and capacitive reactance of a ci...

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  2. Write a short note on sharpness of resonance.

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  3. What is the advantage of using a transformer for long distance transmi...

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  4. State Faraday's law of electromagnetic induction.

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  5. State len's Law of electromagnetic induction. Establish that lenz's La...

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  6. Define Coefficients of self induction write their SI units.

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  7. Find the expression for mutual inductance between a pair of co-axial c...

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  8. Briefly explain the working of A.C. generator.

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  9. What is virtual ampere? Deduce the relation I(mns)=I0/sqrt2

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  10. Prove that average power consumed in an ac circuit is P(av) =I(mns)* V...

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  11. A coil of area A, number of turns N and resistance R is rotating in a ...

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  12. The equation of an alternating voltage is V=100sin100πt volt. Find the...

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  13. If the rms current through a 6.8kΩ resistor is 8mA, Find the rms volta...

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  14. What is the advantage of using a transformer for long distance transmi...

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  15. State the working principle of a transformer. What is hysteresis loss ...

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  16. A cylindrical bar magnet is kept along the axis of a circular coil. Wi...

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  17. Why do birds fly off high tension when current is switched on?

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  18. What is an amplitude ?

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  19. Why are coils in resistance box double wounded?

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  20. Why is spark produced in the switch off a fan when it is put off?

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