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OpenStudy (anonymous):
is there any terminal identification mark for rheostat as positive, negative
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OpenStudy (anonymous):
No shabbir, rheostats have two or three terminals but they are not marked as + or -.These terminals r just ude to coonect them to the circuit.Refer this site for more info http://www.tech-faq.com/rheostat.html.Please rate if u like this answer:)
OpenStudy (anonymous):
rheostats are pure resistances with a provision to vary the resistance connected in the circuit with a moving contact. Resistance do not have polarities
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