A cylindrical metal wire at room temperature is carrying electric current between its ends. One end is at potential VA = 50 V, and the other end is at potential VB = 0 V. Rank the following actions in terms of the change that each one separately would produce in the current from the greatest increase to the greatest decrease. In your ranking, note any cases of equality
(a) Make VA = 150 V with VB = 0 V.
(b) Adjust VA to triple the power with which the wire converts electrically transmitted energy into internal energy.
(c) Double the radius of the wire.
(d) Double the length of the wire.
(e) Double the Celsius temperature of the wire.
1.b > c > a > e > d
2.d > a > c > b > e
3.c > a > b> e > d
4.a > c > d > e > b
5.None of these.
3
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