Physics, asked by kestrel, 1 year ago

Resistance between two opposite faces of square thin film of area 1 mm^2 having thickness of 1micrometer if resistivity of material is 10^-6 will be? A) 1000 ohm B) 100 ohm C) 1 ohm D) 10 ohm

Attachments:

Answers

Answered by bhagyashreechowdhury
41

Answer:

The resistance is 1 ohm.

Explanation:

Given data:

Area, A = 1 mm²  

Resistivity, ρ = 10⁻⁶ Ωm

Thickness, t = 1 µm = 10⁻⁶ m

To find: Resistance, R

We know,  

Area = L * t ……(i)

And,

R = (ρ * L) / A ….. (ii)

Putting values of (i) in (ii), we get

R = (ρ*L) / (L * t)  

Or, R = ρ / t

Or, R = 10⁻⁶ Ωm / 10⁻⁶ m

Or, R = 1 Ω

Similar questions