Question

4.
12
The resistance of a given conductor is directly
proportional to the mh power of the length
of conductor and nth power of the area of
cross section then values of m and n are
(A) 1,1
(B) -1,1
(C) 1,-1
(D) -1,-1
13​

Answer 1

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor. See resistivity. The resistance of a conductor, or circuit element, generally increases with increasing temperature.