Question

There is a step-up transformer that doubles the voltage. If the primary coil has a voltage of 10 V, what will the voltage in the secondary coil be?

1) 5 V
2) 10 V
3) 12 V
4) 20 V
5) 100 V

Answer 1

A step-up transformer that doubles the voltage will increase the primary coil voltage of 10 V to a secondary coil voltage of 20 V.

Step-by-step explanation:

The student asked about the voltage in the secondary coil of a step-up transformer that doubles the voltage, given that the primary coil has a voltage of 10 V. Since a step-up transformer increases voltage and this particular transformer doubles it, we can calculate the voltage of the secondary coil by multiplying the primary voltage by 2.

10 V (Primary Voltage) x 2 (Voltage Increase) = 20 V (Secondary Voltage)

Therefore, the voltage in the secondary coil will be 20 V.