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प्रश्न
Name the tranformer used in the power sub-station, state the function of each transfomer.
उत्तर
At power sub-station transformer used is step-down transformer to step-down the voltage from 132 KV to 33 KV and transmitted to heavy industries.
संबंधित प्रश्न
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.
In a step up transformer ______.
Name the coil of which the wire is thicker in a step up transformer. Give reason to your answer.
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.
Explain two types of transformer.
Define step up and step down transformer.
Below is the diagram of a transformer:
- Identify the type of transformer.
- In this type of transformer which of the wire is thicker, the primary or the secondary? Give a reason.
State two characteristics of the primary coil as compared to its secondary coil of a step-up transformer.
