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प्रश्न
Differentiate step up and step down transformer.
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.
Draw a labelled diagram of a device you would use to transform 200 V a.c. to 15 V a.c. Name the device and explain how it works. Give its tow uses.
- Complete the following diagram of a transformer and name the parts labelled A and B.
- Name the part you have drawn to complete the diagram in part (a).
- What is the material of this part named above?
- Is this transformer a step up or step down? Give reason.
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?
Name the transformer used in the power generating station and state the function of the 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.
Explain two types of transformer.
The transformation ratio in the step-up transformer is ______
The output current of a transformer in which the voltage is stepped down is usually higher than the input current. Explain why.
Name the tranformer used in the power sub-station, state the function of each transfomer.
