Explain to me in details what is a rheostat (in electricity). Why do we use it? Where do we place it? What does it change?
2007-03-04 03:38:31 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Its the old name for variable resistor
2007-03-04 03:42:38 · answer #1 · answered by Poor one 6 · 0⤊ 0⤋
A rheostat is a device that can change resistance. Resistance is the opposition of electron flow. By turning the rheostat to the right, one allows more electrons to flow. This said a "Rheostat" is the volume for the radio, the old TV channel changer, the knob on old radios that selected the stations, the dimmer in the living room chandelier and the dimmer in your automobile dash panel. So when some one says turn that music down... You turn the rheostat to the Left. hope this helps.
2007-03-04 04:36:36 · answer #2 · answered by Will M 2 · 0⤊ 0⤋
a Rheostat is just a device used to vary the resistance on a circuit....And example is a light dimmer...Turn the dial or slide the slide to get less extra resistance and light is brighter. do it the otherway to increase resistance in the circuit and the light is dimmer.
2007-03-04 03:51:45 · answer #3 · answered by bob shark 7 · 0⤊ 0⤋
cool dude RHEOSTAT isa device used in an electric circuit to alter the current the circuit ok
2007-03-04 03:48:56 · answer #4 · answered by Abullu M 2 · 0⤊ 0⤋
Yes, it's a variable resistor.
Examples: volume knob on a guitar or radio; Light dimmer switch; Control knobs on an electric oven.
2007-03-04 03:56:10 · answer #5 · answered by Toeless_Joe_Jackson 5 · 0⤊ 0⤋
it is a device by which resistance is changed in a circuit . Actually it is a variable resistance. it is used in a circuit to change electric current by changing resistance
2007-03-04 03:49:57 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I don't know, a made up word?
2007-03-04 03:41:25 · answer #7 · answered by beckyzhou98 2 · 0⤊ 1⤋