this is my first post here pardon me if this question is idiotic :)
I made a voltage divider by following the image below
But when I connect 12v supply the resistor getting very hot just in 2seconds what am I doing wrong ?
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2\$\begingroup\$ What else is attached? Have you verified each of the resistances with an ohmmeter? \$\endgroup\$– jonkCommented Feb 2, 2017 at 18:25
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1\$\begingroup\$ Yes, check your resistors. each of those 12k resistors should be dissipating about 0.003 watts, which should not cause noticeable heating of any resistor you are likely to be using. \$\endgroup\$– Paul ElliottCommented Feb 2, 2017 at 18:29
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7\$\begingroup\$ Are you using 12 ohm and 10 ohm resistors? \$\endgroup\$– Andy akaCommented Feb 2, 2017 at 18:33
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\$\begingroup\$ k = 1000 hobby-hour.com/electronics/resistorcalculator.php \$\endgroup\$– Bruce AbbottCommented Feb 2, 2017 at 18:58
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1 Answer
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k means kilo-ohm. For example 10k means 10000 Ohms. Check by ohmmeter if you had not understood the color codes . Alternatively your voltage is higher than you think. I have done the later error by an 10x oscilloscope probe.
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\$\begingroup\$ Thank you for the answer, Yes it was my mistake i took 10 Ohms resistors instead 10K @andy-aka \$\endgroup\$ Commented Feb 4, 2017 at 8:57