Question

which two wire properties would provide the greatest resistance to the flow of a current?
short, thin
long, thin
hot, thick
cool, thick

Explanation:

The resistance formula for a wire is $R =
ho\frac{l}{A}$, where $
ho$ is resistivity (material - dependent), $l$ is length and $A$ is cross - sectional area. Longer length ($l$) and smaller cross - sectional area (thin wire, small $A$) increase resistance. Also, for most materials, resistance increases with temperature. So long and thin wires have high resistance.

Answer:

B. long, thin