Answers

2014-04-13T16:01:27+05:30
Resistor is a device which have some resistance to the passage of current
while rheostat is the one which controls the variable resistance
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2014-04-13T16:38:43+05:30
Resistor is a device having resistance to the passage of an electric current.
Rheostat is an electric instrument used to control a current by varrying the resistance.
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