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प्रश्न
In a step up transformer ______.
पर्याय
Ns = Np
Ns < Np
Ns > Np
nothing can be said
उत्तर
In a step up transformer NS > NP.
Explanation:
Since a step-up transformer is used to change a low voltage alternating e.m.f. to a high voltage alternating e.m.f. of same frequency, the number of turns in the secondary coil is more than the number of turns in the primary coil, i.e. Ns > Np.
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संबंधित प्रश्न
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?
In a step-up transformer, the number of turns in the primary are ______ than the number of turns in the secondary.
Name the coil of which the wire is thicker in a step up transformer. Give reason to your answer.
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.
Differentiate 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.
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.
A transformer is used to change a high alternating e.m.f. to a low alternating e.m.f. of the same frequency.
State whether the turns ratio of the above transformer is = 1 or > 1 or < 1.
State two characteristics of the primary coil as compared to its secondary coil of a step-up transformer.
