Home Improvement: Amico Ceramic Casing 25W 50ohm Variable Resistor Wire Wound Rheostat - Amico

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Toy: 25-Ohm 3-Watt Rheostat: 25-ohm ?20% tolerance wirewound 3-watt variable resistor - RetroArcade.us

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Ohm Rheostat Popular Q&A

Q: If I purchase a 5k ohm rheostat, can I set it to 1k ohm?
A: what do you mean by "dead band of using a 2k ohm rheostat" ? A 5k rheostat can be set to 1k, but it's power rating will be about 1/5. And the resolution will be... Read More »

Q: A voltage source of 20v is applied across the terminals of a 2.5-...
A: We can treat the rheostat as a resistor. There is a formula "V squared over R" that gives the power lost. In this case, that would be 400/2.5 or 160 Watts. You ... Read More »

Q: Can the speed of an AC Drill motor be controlled using a 5k Ohm r...
A: No, you will smoke the potentiometer. When the pot is at full resistance the drill won't rotate and the pot will be dissipating over 2 watts. As the pot resista... Read More »

Q: Are the ohm and amp ratings for the rheostat based on the ratings...
A: No the amperage of the whole circuit and the wattage of the lights. Example the 2 mil power lights are rated at 16 amps. you need a stat that can handle that mu... Read More »

Q: A cell of emf 3.0 volts and internal resistance of 0.01 ohm is co...
A: What is the voltage on the battery or what is the current? 3V is pushing ,o1+05+5+85 or .51 amps the voltage across the battery is then is 2.99 volts. Read More »