Which of the following is correct for a step-down transformer?
what are the choices?
To determine which statement is correct about a step-down transformer, let's first understand what a step-down transformer is.
A step-down transformer is a type of electrical transformer that converts a higher voltage input to a lower voltage output. It has more turns on the primary winding compared to the secondary winding, which results in a reduction of voltage. The primary winding receives the higher voltage, while the secondary winding outputs the lower voltage.
Now, let's evaluate the options to determine the correct statement:
Option 1: "Step-down transformers convert low voltage to high voltage."
This statement is incorrect, as step-down transformers actually convert high voltage to low voltage.
Option 2: "Step-down transformers have more turns on the primary winding than on the secondary winding."
This statement is correct. In a step-down transformer, the primary winding has more turns than the secondary winding, which results in a voltage reduction.
Option 3: "Step-down transformers increase the power output."
This statement is incorrect. Step-down transformers decrease the voltage and increase the current, but the power (watts) remains the same (ignoring losses).
Based on the evaluation of the options, the correct statement for a step-down transformer is Option 2: "Step-down transformers have more turns on the primary winding than on the secondary winding."