Q. 143.8( 8 Votes )

What is the resistan

Answer :

The property of a conductor due to which, it opposes the flow of current through it, is called resistance. The resistance of a conductor is numerically equal to the ratio of potential difference across its ends to the current flowing through it, i.e
Resistance = Potential difference / Current 
R = V/I
The resistance of a conductor depends on the length, thickness, nature of material and temperature of the conductor. A long wire has more resistance and a short wire has less resistance. A thick wire has less resistance and a thin wire has more resistance. The rise in temperature of a wire increases its resistance.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Heating Effect of Electric CurrentHeating Effect of Electric CurrentHeating Effect of Electric Current40 mins
Resistors in ParallelResistors in ParallelResistors in Parallel39 mins
Ohm's LawOhm's LawOhm's Law43 mins
Resistors in SeriesResistors in SeriesResistors in Series42 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

i. In a householdXam idea - Science

For which positioXam idea - Science