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Case study : Read the following paragr...

Case study :
Read the following paragraph and answers the questions :

The large-scale transmission and distribution of electrical energy over long distances is done with the use of transformers. The voltage output of the generator is stepped-up. It is then transmitted over long distances to an area sub-station near the consumers. There the voltage is stepped down. It is further stepped down at distributing sub-stations and utility poles before a power supply of 240 V reaches our homes.
If the secondary coil has a greater number of turns than the primary,

A

the voltage is stepped-up `(Vs gt Vp)` and arrangement is called a step-up transformer

B

the voltage is stepped-down `(Vs lt Vp )` and arrangement is called a step- down transformer

C

the current is stepped-up `(Is gt Ip)` and arrangement is called a step-up

D

the current is stepped-down `(Is lt Ip)` and arrangement is called a step- down transformer

Text Solution

Verified by Experts

The correct Answer is:
A
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