Ask Question
18 August, 13:15

A transformer is to be used to provide power for a computer disk drive that needs 6.4 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 405, and it delivers 500 mA (the secondary current) at an output voltage of 6.4 V (rms). Find the current in the primary.

+3
Answers (1)
  1. 18 August, 13:20
    0
    The current in the primary is 0.026 A

    Explanation:

    Using the formula

    I1 = (V1/V2) * I2

    we have

    I1 = (6.4/120) * 0.500

    I1 = 0.026 A
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A transformer is to be used to provide power for a computer disk drive that needs 6.4 V (rms) instead of the 120 V (rms) from the wall ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers