Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Lv 55,236 points

LGN

Favorite Answers56%
Answers605

  • How do I change the output current of a small plug-in transformer?

    I have a burned out class 2 transformer that converted 120 V, 60 Hz, 9 W input to 12 VAC .47 A output. I cannot find an exact replacement, but found one with 12 VAC, .93 A output.

    I naively thought adding a resistor to one of the wires from this transformer would, in accordance with Ohm's Law, change the output so this would be a suitable replacement.

    Have:

    V = IR

    12 = (.93)R

    12.9 = resistance inherent in the transformer

    Want:

    V = IR

    12 = (.47)R

    25.53 = R Therefore, add 12.6 ohms resistance.

    I was wrong.

    What should I do, instead?

    12 AnswersEngineering3 years ago

  • First use of "crickets" to mean silence?

    I am curious about the origin of phrases using the word "crickets" to indicate silence. Most forums posit its origins with movies or television, but Henry David Thoreau used it in his 1854 address "Slavery in Massachusetts":

    "I listen to hear the voice of a Governor, Commander-in-Chief of the forces of Massachusetts. I hear

    only the creaking of crickets and the hum of insects which now fill the summer air."

    Is anyone aware of an earlier use?

    1 AnswerLanguages4 years ago