Answer: the mutual inductance is - 0.0978H
Explanation:
Detailed explanation and calculation is shown in the image below
upper one :
Each metal atom contributes one or more electrons . Note:-free and mobile electrons are responsible for high thermal and electrical conductivity of metals. metals contain lot of free electrons while nonmetals don't have it. metals conduct electricity due to the presence of free electrons which are absent in non-metals.
down one :
metals are good conductors of both heat and electricity, whereas nonmetals generally cannot conduct heat or electricity. ... Metalloids tend to be shiny like metals but brittle like nonmetals. Because they are brittle, they may chip like glass or crumble to a powder if struck.
Answer:
d = 4[m]
Explanation:
Torque in physics is defined as the product of force by distance. This way you can use the following equation to calculate the torque.
![T=F*d](https://tex.z-dn.net/?f=T%3DF%2Ad)
where:
T = torque [N*m]
F = force [N]
d = distance [m]
Now replacing in the equation above.
![84=21*d\\\\d= 4[m]](https://tex.z-dn.net/?f=84%3D21%2Ad%5C%5C%5C%5Cd%3D%204%5Bm%5D)