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  • Question
  • A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?


  • Options
  • A. 50 A
  • B. 12 A
  • C. 5 A
  • D. 20 A
  • E. None of the above

  • Correct Answer
  • 20 A 


  • More questions

    • 1. How many DMA channels are there in an AT class PC?

    • Options
    • A. 3
    • B. 4
    • C. 7
    • D. 8
    • E. None of the above
    • Discuss
    • 2. _____ has become the most widely used bipolar family.

    • Options
    • A. DTL
    • B. TTL
    • C. ECL
    • D. MOS
    • E. None of the above
    • Discuss
    • 3. How many bytes are there in 1011 1001 0110 1110 numbers?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 8
    • E. None of the above
    • Discuss
    • 4. What switch would you use to view Smartdrive statistics?

    • Options
    • A. /x
    • B. /e:
    • C. /s
    • D. /o:n
    • E. None of the above
    • Discuss
    • 5. Which of the following command lists the last 10 lines of a file?

    • Options
    • A. grep
    • B. tail
    • C. head
    • D. cat
    • E. None of the above
    • Discuss
    • 6. Which of the following command can be used to rename a file in UNIX?

    • Options
    • A. ren
    • B. mv
    • C. remove
    • D. change
    • E. None of the above
    • Discuss
    • 7. What command is used to remove jobs from the print queue?

    • Options
    • A. lpq
    • B. lpr
    • C. lprm
    • D. lpc
    • E. None of the above
    • Discuss
    • 8. Which of the following is a universal gate?

    • Options
    • A. AND
    • B. OR
    • C. EX-OR
    • D. NAND
    • E. None of the above
    • Discuss
    • 9. What command is used to copy directory structures in and out?

    • Options
    • A. copy
    • B. cp - p
    • C. cpio
    • D. cp
    • E. None of the above
    • Discuss
    • 10. The EIA-232 interface has _____ pins.

    • Options
    • A. 20
    • B. 24
    • C. 25
    • D. 30
    • Discuss


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