Which of the following is correct for a step-down transformer?
Number of turns in the primary coil is less than the number of turns in the secondary coil.
Step-down transformer increases the voltage from low value to high value.
Number of turns in the primary coil is more than the number of turns in the secondary coil.
Step-down transformer is used in power station to minimize the power loss.
My answer is A
Number of turns in the primary coil is more than the number of turns in the secondary coil.
You are correct. In a step-down transformer, the number of turns in the primary coil is less than the number of turns in the secondary coil. This results in a decrease in voltage from the primary side to the secondary side of the transformer.
To determine the correct option for a step-down transformer, we need to understand how a transformer works. A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
In a step-down transformer, the primary coil has more turns than the secondary coil. This means that option C, which states the opposite, is incorrect.
The main purpose of a step-down transformer is to decrease the voltage from a higher value to a lower value. Therefore, option B, which states the opposite, is incorrect.
Based on the above explanations, the correct option for a step-down transformer is option A. The number of turns in the primary coil is less than the number of turns in the secondary coil.
Option D, which refers to a power station and power loss, is not directly related to the definition of a step-down transformer.