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OSWAAL PUBLICATION-ALTERNATING CURRENT-Topic - 3 (Long answer Type Questions)
- Draw a neat labelled diagram of an ac generator or dynamo.
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- How is magnetic flux linked with the armature coil changed in a genera...
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- Give the expression for maximum induced emf in an ac generator.
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- Show the variation of the emf generated versus time as the armature is...
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- Draw a schematic arrangement for winding of primary and secondary coil...
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- State the underlying principle of a transformer and obtain the express...
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- Write the main assumption involved in deriving the above relation.
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- What is the principle behind the working of a transformer ? Mention an...
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- With the help of a labelled diagram describe briefly the underlying pr...
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- What is a transformer ? Mention two sources of energy loss in a transf...
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- A step up transformer converts a low input voltage into a high output ...
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- State the underlying principle of a transformer. How is the large-scal...
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