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प्रश्न
State the mathematical relation between a number of turns in the primary coil to a secondary coil in the step-up transformer.
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उत्तर
In a step-up transformer, the number of turns in the secondary coil is more than that in the primary coil (NS > NP).
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संबंधित प्रश्न
Draw a labeled diagram of a step-down transformer.
Find the ratio of primary and secondary currents in terms of turn ratio in an ideal transformer.
The primary coil of an ideal step-up transformer has 100 turns and the transformation ratio is also 100. The input voltage and power are 220 V and 1100 W, respectively. Calculate the
(a) number of turns in secondary
(b) current in the primary
(c) a voltage across secondary
(d) current in secondary
(e) power in secondary
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Name the phenomenon ?
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Draw a labeled diagram of a full wave rectifier circuit. State its working principle. Show the input-output waveforms ?
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(iii) What material is used for the core of an electric bell? State the reason.
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Distinguish between Step up and Step Down Transformer.
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Devices which is used to convert high alternating current to low alternating current is ______.
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Reason: D.C. changes neither in magnitude nor in direction.
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A transformer is used ______
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Efficiency of transformer is the ratio of ______.
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Derive the equation for a transformer.
What type of transformer is used in a mobile phone charger?
Explain why core of a transformer is always laminated.
How do the input and output powers in a transformer compare? State the assumption made.
