Question

Which of the following is true for a step up transformer?

• A. Number of turns in secondary coil are more than that in primary coil.
• B. Number of turns in secondary coil are lesser than that in primary coil.
• C. Number of turns in secondary coil are same as that in primary coil.
• D. The current flowing through the coils is almost zero.

Answer 1

The correct option is A

Number of turns in secondary coil are more than that in primary coil.

In a step up transformer, number of turns in secondary coil are greater than that in primary coil. This helps in increasing the volatge by reducing the current in the secondary coil.