A fixed voltage is applied across the length of a tungsten wire
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
93. A fixed voltage is applied across the length of a tungsten wire. An increase in the power dissipated by the wire would result if which of the following could be increased?
(A) The resistivity of the tungsten
(B) The cross-sectional area of the wire
(C) The length of the wire
(D) The temperature of the wire