How many CPS is the kinematic viscosity of coal tar at 50 ℃ 100mm2 / S?

How many CPS is the kinematic viscosity of coal tar at 50 ℃ 100mm2 / S?

1 mm2/s=1 cSt
CPS = CST x fluid density
Density of coal tar at 50 ℃ 1154kg / M & # 179; (physicochemical constant of coking)
So 100mm2 / S = 0.1154cp. S

Resistivity of resistance wire
I have a resistance wire with a diameter of 0.18mm and a length of 10mm. Now it is 0.4 ohm. What material is it, please? Thank you for your help

Nickel chromium alloy
R = ρ L / s, r = 0.4 Ω
Length L = 10 ^ - 2m, diameter d = 1.8 × 10 ^ - 4m, cross-sectional area s = π D & sup2 / 4
So ρ = RS / L = π D & sup2; R / 4L ≈ 1.018 × 10 ^ - 6 Ω· M
The resistivity of Ni Cr alloy is 1 × 10 ^ - 6 Ω· M
It is nickel chromium alloy. If you bring in 1 × 10 ^ - 6 Ω· m, you can calculate that the resistance is about 0.39 Ω

What is the resistance wire of rheostat made of? Its characteristic is resistivity________ And the melting point_______

The resistance wire of rheostat is made of nichrome wire. Its characteristic is resistivity_ Big_ And the melting point__ High_

Why is the resistivity of resistance wire larger?
Public q = I ^ 2rt
When R is larger, I will be smaller. How to explain?

The resistance wire and the connecting wire are connected in series. The resistance wire can share most of the voltage when the resistivity is high. If the resistivity is low, most of the electric energy will be robbed by the wire
The higher the resistance, the smaller the current is reasonable. Therefore, the resistance of the high temperature range of the electric cooker is small, and the resistance of the low temperature range is large. But when the resistance is small, the resistance of the resistance wire is much larger than that of the wire, so as to ensure that the resistance wire gets most of the voltage