The voltage turn ratio of step down transformer is:
Correct answer: C. 2:1
- A. 1:2
- B. 1:3
- C. 2:1
- D. 2:5
Explanation
A step-down transformer is designed to reduce the voltage of the input signal. The voltage turn ratio is defined as the ratio of the number of turns in the secondary coil to the number of turns in the primary coil. In a step-down transformer with a voltage turn ratio of 2:1, the number of turns in the secondary coil is half of the number of turns in the primary coil. This means that the output voltage is half of the input voltage. For example, if the input voltage is 120 volts, the output voltage will be 60 volts. So, a step-down transformer with a voltage turn ratio of 2:1 reduces the voltage of the input signal by a factor of two.
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