Question

A Show that the SI unit of resistivity is ohm meter . (2) B. Calculate the minimum resistance Which can be made By using five resistors of 1/2 ohm​

Answer 1

Answer:

1) R = ρl/A When SI units are substituted in the respective quantities,

Ω = ρ (m/m²)

=> ρ= Ωm

2) Minimum resistance= Resistance when resistors are connected in parallel

$R_{p} = \frac{n}{R}$ = 5/0.5=10 Ω