If that is not available, the only other way is a circuit diagram, or a reference design around the IC it is supporting. If it is a divider part which determines the voltage for a regulation circuit a wrong resistor value can produce a too high signal voltage. The output voltage of the regulator can override the expected output value and destroy the devices supplied.
Take the circuit board on which the resistor is soldered and cut the wire leads with diagonal cutters. Remove the defective resistor. Turn on the soldering iron. Place the tip on the lead and the pad through which the lead is placed until the solder melts. Blowing Up a Resistor.
By applying too high a voltage to a resistor, the resistor will draw too much current. This causes excessive power to be dissipated in the resistor which makes it go up in flames and a cloud of smoke as this video shows.
The cases where using a higher value resistor will damage a circuit exist, but are a bit less usual than the cases where it may simply produce a weaker result than desired, or a different frequency response than desired.
I have a new idea, good resistor series connect with the burnt resistor and then mesure the resistor value notify then mines - the good resistance value from notified value due to the remaining value is that. Your email address will not be published. Notify me of follow-up comments by email.
Notify me of new posts by email. Electrical Technology 9 2 minutes read. Show More. Related Articles. Electric Bill Calculator with Examples. Step by Step Procedure with Solved Example. A non centre tap transformer outputs 23v dc. Learn more. What does a burnt resistor result in? Ask Question.
Asked 1 year, 11 months ago. Active 1 year, 11 months ago. Viewed times. I assumed that a resistor results in an open circuit when it burns out. Some are even rated for this "flameproof" for safety.
Thought experiment: 1 What is the resistance of m identical resistors in parallel? Higher or lower? Add a comment. Active Oldest Votes. Peter Green Peter Green
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