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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
- What do you mean by power factor? On what factors does it depend?
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- What is a sereis resonant circuit? Derive an expression for resonance ...
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- Derive an expression for average power is an A.C. circuit containing r...
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- What is the quality factor (Q) in an a.c. circuit?
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- Why choke coil cannot be used in d.c.?
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- Explain the function of a choke coil.
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- Draw a schematic diagram of a cyclotron. Explain the underlying princi...
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- With the help of labelled diagram, describe the principle,construction...
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- Derive the relationship between peak and the rms value of current in a...
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- Describe briefly, with the help of a lablled diagram, working of a ste...
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- What are the factors which reduce the efficiency of a transformer ?
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- Establish relation between voltage and current in primary and secondar...
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- With the help of labelled diagram, describe the principle,construction...
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- Explain the principle, construction and working of a step down transfo...
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- With the help of labelled diagram, describe the principle,construction...
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- What are copper loss, iron loss and hysteresis loss in transformer?
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- What are copper loss, iron loss and hysteresis loss in transformer?
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- What are copper loss, iron loss and hysteresis loss in transformer?
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- What is a transformer? Explain its theory and give its main uses?
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- Give the principle of a transformer, construction of a stepdown transf...
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