Q&A: Reader's Questions Editor's Answers.(electronics questions)

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Resistor Voltage Ratings

Q I have noticed a mistake in many of your circuits that is quite dangerous, particularly in circuits using high voltages. Everyone knows that capacitors have voltage ratings and resistors have power ratings. But did you know that a resistor also has a voltage rating?

You may he wondering how a resistor can have a voltage rating. As it turns out, this value does not refer to the resistive element but rather the resistor's insulation. If this value is exceeded, the insulation will break down or cease to be ...

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