Answer:
L = 0.0464 m
Explanation:
Given;
The relation between the time 't' and the distance 'L' as:
and,
Diffusion constant, D = 1.8 x 10⁻⁵ m²/s
time, t = 60 s
on substituting the values in the above relation, we get
or
or
L = 0.0464 m
The most likely reason that Mendeleev placed tellurium before iodine is <span>Mendeleev observed that tellurium has chemical properties like other elements in its group, and he did not know that neutrons cause the greater atomic mass.</span>
As we know V=IR
So, R= 20 ohms, I= 2 A
Therefore, V= 2*20 = 40 V
Electric Voltage
The difference in electric potential between two points, also known as voltage, electric potential difference, electric pressure, or electric tension, determines how much labour is required to move a test charge between the two sites in a static electric field. Volt is the name of the derived unit for voltage (potential difference) in the International System of Units. 1 volt equals 1 joule (of work) for 1 coulomb, is how to work per unit charge is stated in SI units (of charge). Power and current were utilized in the previous SI definition for the volt, and the quantum Hall and Josephson effect was incorporated in 1990. As of 2019 fundamental physical constants have been employed in the definition of all SI units and derived units.
To learn more about the electric voltage refer here:
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