long solenoid that has 1 080 turns uniformly distributed over a length of 0.390 m produces a magnetic field of magnitude 1.00 10-4 T at its center. What current is required in the windings for that to occur

28.72 mA

Explanation:

The computation is shown below:-

The expression for the magnetic field at the center  

Where I indicate current in the solenoid  

n indicates the number of turns per unit length of the solenoid

indicates permeability of free space

Now,

The expression for the number of turns per unit length  

where

n indicates the  number of turns  

and l indicates the length of the solenoid

now we will combine n and b to reach the value of I

So,

= 28.72 mA

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.