Question

A metal block has dimensions 10 cm x 5 cm x 2 cm. The ratio of maximum to minimum resistance

Answer 1

Answer:

25:1

Explanation:

R=ρ*L/A

for min R=min∣L=min,A=max

for max R=max∣L=max,A=min

Rmin=ρ*2/50

Rmax=ρ*10/10

Rmax/Rmin =1/(1/25)

= 25:1