(Solved): A triangular cobalt rod has resistance R. It is reformed into a cylinder that has half its ...

A triangular cobalt rod has resistance R. It is reformed into a cylinder that has half its original cross-scectional area with no change of volume (Note: Volume = Length * Area). Its new resistance is:

Group of answer choices

8R

R/4

4R

R

R/8

Two batteries, with V1 = 49.5 V and V2 = 94.9 V, and two resistors, with R1 = 33 ohms and R2 = 95 ohms, are connected together in the circuit shown in the figure. What is the current of the circuit in amps? (Hint: use Kirchoff's Loop Rule) V1 R1 7 www R2 V2