Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the power delivered to wire B? P A/P B

given answers
a. 1/3
b. 2/3
c. 3/3
d. 3/2
e. 4/2

1 answer

someone please help, I cant figure out the ratio.