Answer:
is proved.
Explanation:
The magnetic field in the long current carrying wire is,

Here, I is the current, B is the magnetic field.
Now, by using cylindrical coordinates for the divergence of B.

Put the value of B in above equation.

Hence, it is prove that for a long current I carrying wire magnetic field divergence that is
.
Explanation:
modern quantum mechanics explains these periodic trends in properties in terms of electron shells. the filling of each shell corresponds to a row in the table
The answer to this question is D
Answer:
The distance spring compresses (x) = 0.0811 m
Explanation:
Spring constant (k) = 185 N / m
mass (m) = 1.53 kg
When mass is placed upon the spring the spring force is equal to weight of the mass.
⇒ Spring force (F) = weight of object
⇒ Spring force (F) = k × x
And weight of the object = mg
⇒ k x = mg -----------------(1)
Put all the values in equation (1) we get
⇒ 185 × x = 1.53 × 9.81
⇒ x = 0.0811 m
This the distance spring compresses, when mass is placed upon it.