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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
- As shown in figure an electric lamp having coil of negligible inductan...
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- In the circuit shown below R represents an electric bulb. If the frequ...
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- Show in the figure, two electric circuits A and B. Calculate the ratio...
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- What is the quality factor (Q) in an a.c. circuit?
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- Three students X,Y and Z performed an experiment for studying the vari...
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- Three students X,Y and Z performed an experiment for studying the vari...
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- What is sharpness of resonance?
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- Why does an LC circuit produce oscillations?
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- Why does an LC circuit produce oscillations?
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- Explain briefly, how the pehnomenon of resonance in the circuit can be...
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- In an a.c. circuit, why is there no power consumption for an ideal ind...
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- Prove mathematically that the average power over a complete cycle of a...
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- Prove that in an a.c. circuit, an ideal capacitor does nt dissipate po...
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- The instantaneous current and voltage in an a.c. circuit given by I = ...
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- What do you mean by power factor? On what factors does it depend?
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- Explain the importance of power factor.
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- For circuit used for transporting electric power, a low power factor i...
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- Why power factor correction is must in heavy machinery?
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- Power factor can often be improved by the use of capacitor of appropri...
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- Which is more dangerous in use a.c. or d.c.? Explain, why?
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