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प्रश्न
Differentiate step up and step down transformer.
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उत्तर
| Sr. No. | Step up transformer | Step down transformer |
| 1. | The transformer used to change a low alternative voltage to a high alternating voltage is called a step up transformer, i.e. (Vs>Vp). | The transformer used to change a high alternating voltage to a low alternating voltage is called a step down transformer (Vs <Vp). |
| 2. | In a step up transformer, the number of turns in the secondary coil is more than the number of turns in the primary coil (Ns > Np) | In a step down transformer, the number of turns in the secondary coils are less than the number of turns in the primary coil (Ns < Np) |
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संबंधित प्रश्न
Draw a labelled diagram of a step-up transformer and explain how it works.
The following diagram shows the core of a transformer and its input and output connections.
- State the material used for core and describe its structure.
- Complete the diagram of the transformer and connections by labelling all parts joined by you.
- Name the transformer: step-up or step down?
Give two points of difference between a step-up transformer and step-down transformer.
In a step up transformer ______.
State whether true or false. If false, correct the statement.
In a step down transformer the number of turns in primary coil is greater than that of the number of turns in the secondary coil.
A portable radio has a built in transformer so that it can work from the mains instead of batteries. Is this a step up or step down transformer? Give reason.
Define step up and step down transformer.
A transformer is used to change a high alternating e.m.f. to a low alternating e.m.f. of the same frequency.
Identify the type of transformer used for the above purpose.
Name the device used to transform 12 V a.c. to 200 V a.c.
State two characteristics of the primary coil as compared to its secondary coil of a step-up transformer.
