The correct graph showing the variation of the resistance (R) of a cylindrical metal wire as a function of its radius (r), keeping its length and temperature constant, is :

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MCQ (Single)Electrical ResistanceCBSE PYQ

Similar Questions

The masses of two cylindrical wires of copper are in the ratio of 1 : 3 and their lengths are in the ratio of 5 : 3. The ratio of their resistances will be :

MCQ (Single)Electrical ResistanceElectrical Resistivity and Conductivity

A p.d. of V volts is applied to a conductor of length L and diameter D. How will the drift velocity of e's and the resistance of the conductor change when (i) V is doubled (ii) L is halved and (iii) D is halved, where in each case, the other two factors remain same. Give reason in each case.

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