can someone please help me!!!... im in a critical situation....need answers ASAP!!!!!!!!!please and thank you...
2006-07-15 00:07:26 · 4 answers · asked by punkie_cute15 1 in Consumer Electronics ➔ Other - Electronics
a variable resistor can be used for two main purpses one is for voltage control which is called potentimeter and the other is current control which is called rehostat. A rehostat is formed when one end terminal of resistor is connected to the middle terminal or left open, then the current flows through the resistor and the varition in resistance value causes for change in flow of current.
2006-07-15 01:42:16 · answer #1 · answered by aasi_brw 1 · 0⤊ 0⤋
"a variable resistor can be used for two main purpses one is for voltage control which is called potentimeter "
Not quite.
A rheostat is a two-terminal device. A potentiometer has three.
2006-07-15 05:12:12 · answer #2 · answered by dmb06851 7 · 0⤊ 0⤋
A continuously variable electrical resistor used to regulate current.
If you had time for this you could have used an on line dictionary as well...right?
2006-07-15 00:10:44 · answer #3 · answered by Puppy Zwolle 7 · 0⤊ 0⤋
check it out here in differnt ways
http://www.google.co.in/search?hl=en&lr=&defl=en&q=define:Rheostat&sa=X&oi=glossary_definition&ct=title
2006-07-15 00:11:43 · answer #4 · answered by jugnu 3 · 0⤊ 0⤋