Advertisements
Advertisements
प्रश्न
Name the coil of which the wire is thicker in a step up transformer. Give reason to your answer.
उत्तर
In a step-up transformer, thicker wire is used in the primary coil as compared to that in the secondary coil.
The use of thicker wire reduces its resistance and therefore reduces the loss of energy as heat in the coil. In step up NS > NP therefore ES > EP, but Is < IP i.e., more current flows in the primary coil.
APPEARS IN
संबंधित प्रश्न
Name the principal on which step up transformer works.
- 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, the number of turns in the primary are ______ than the number of turns in the secondary.
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.
Define step up and step down transformer.
The transformation ratio in the step-up transformer is ______
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.
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.
