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An capacitor C, a variable resistor R an...

An capacitor C, a variable resistor R and a bulb B are connected in series to the ac mains in circuits as shown in Fig. The bulb glows with some brightness. How will the glow of the bulb change if a dielectric slab is introduced between the plates of the capacitor, keeping resistance R to be the same.

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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. Give applications of resonance in series LCR circuit.

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  2. An capacitor C, a variable resistor R and a bulb B are connected in se...

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  3. An capacitor C, a variable resistor R and a bulb B are connected in se...

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  4. A capacitor with capacitance C and a coil with active resistance R and...

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  5. An inductor L of inductance X(L) is connected in series with a bulb B ...

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  6. An inductor L of inductance X(L) is connected in series with a bulb B ...

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  7. As shown in figure an electric lamp having coil of negligible inductan...

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  8. As shown in figure an electric lamp having coil of negligible inductan...

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  9. In the circuit shown below R represents an electric bulb. If the frequ...

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  10. Show in the figure, two electric circuits A and B. Calculate the ratio...

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  11. What is the quality factor (Q) in an a.c. circuit?

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  12. Three students X,Y and Z performed an experiment for studying the vari...

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  13. Three students X,Y and Z performed an experiment for studying the vari...

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  14. What is sharpness of resonance?

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  15. Why does an LC circuit produce oscillations?

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  16. Why does an LC circuit produce oscillations?

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  17. Explain briefly, how the pehnomenon of resonance in the circuit can be...

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  18. In an a.c. circuit, why is there no power consumption for an ideal ind...

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  19. Prove mathematically that the average power over a complete cycle of a...

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  20. Prove that in an a.c. circuit, an ideal capacitor does nt dissipate po...

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